Industrialization of PLC splitter chip technology

by Fiber-MART.COM

Fiber optic communication network has become the cornerstone of today’s world of information transfer. With the further development of the network and increasing market demand for communication bandwidth, the entire communication network at the part between the user’s last ten kilometers and last one kilometer are now using optical fiber. FTTH becomes an important direction of the development of fiber optic communication network.

 

Preparation of PLC Technology

FTTH mainly uses PON network technology, which requires a large number of low-cost optical splitters and other optical passive components. Optical splitter device is an integral part of FTTH network. And with the promotion of FTTH, there would be a greater market demand. The traditional preparation of optical splitter technology is fiber fused biconical taper (FBT) technology. Its characteristics are mature and simple technology. The disadvantage is that the assigned ones and the device size are too large, which caused the decrease in yield and the rising cost of single channel. Therefore, FBT technology based fiber optic splitter preparation techniques have been unable to adapt to the market demand. The following picture shows the FBT technology process.

 

Advent of PLC Technology

As you can see from the perspective of development of optical devices, PLC technology has become a mainstream technology for large-scale preparation of high-performance and low-cost optical splitter. It is the use of PLC technology by producing the optical splitter chip coupled with the optical fiber array package that completes the preparation of the optical splitter. Its features are small device size, low cost and good splitter uniformity. But at the same time, the technical threshold is relatively high, especially for the production of large optical splitters which are suitable for mass production. By analyzing of PLC technology, you can see that the glass-based PLC technology has great advantages in terms of equipment investment, production costs, the optimal choice of production required for FTTH and low-cost optical devices such as optical splitter.

 

Applications of PLC Technology in China

Internationally, PLC technology has been widely used in the miniaturization, high-performance optical device fabrication and production, and the optical splitter chip in particular. In China, however, the reality is that we have become a PLC encapsulation big country, but is limited to the optical splitter and optical device fabrication device coupled packaging and downstream industry chain having no PLC chip health line. And PLC core device chips are entirely dependent on imports. There is a problem that the core preparation technique of the PLC device lies in the outward, which has resulted in major cost control of the device and also led to the lack of technical support further to the high-end integrated chip development. This severely hinders the development of our country in the PLC application.

 

Manufacturing of PLC Splitter Chip

PLC splitter chip manufacturing process PECVD (plasma enhanced chemical vapor deposition) and FHD (flame hydrolysis deposition) and ion exchange. The former two with the substrate material is a silicon-based silica, and the latter with the substrate material is glass. AWG (arrayed waveguide grating) chip production, silica optical waveguide splitter chips can be produced on silica on silicon waveguide or glass waveguide. Production by ion exchange glass waveguide PLC chip domestic number of colleges and universities have been conducting research and development. Technical appraisal sample has been reached the international advanced level of similar products. Further pilot research and development will be able to achieve your PLC splitter chip mass production. In fact, in addition to the production of optical splitter chip, glass-based PLC technology R & D production environment with a wide range of other potential applications, for example, can be applied to detect the required light sensor.

 

Common Types of PLC Splitter

Nowadays, many kinds of PLC splitters with optical splitter chips are on the market for different network connections. Bare fiber PLC splitter has no connector at the bare fiber ends. Blockless PLC splitter has a compact stainless tube package providing stronger fiber protection with terminated ends. ABS PLC splitter has a plastic ABS box to protect the PLC splitter. Other types like fanout splitter, tray type splitter, rack-mount splitter, LGX splitter and mini plug-in type splitter are also widely applied to the FTTH networks.

 

Conclusion

PLC splitter chip technology has greatly improved the implementation of FTTH network. fiber-mart.COM provides all kinds of PLC splitters listed above. If you are interested, please search our website for more detailed information.

OM4 vs. OM5: What’s the Difference?

As the demand for bandwidth, new transmission media must be developed to meet the requirements of users. The latest in optical transmission media is called OM5 fiber. To help you use this advanced fiber to its greatest advantage, this paper describes the basis of OM5 fiber, and highlights the key differences with OM4 fiber.

What Is OM5 Fiber?

According to the ISO/IEC 11801, OM5 fiber specifies a wider range of wavelengths between 850nm and 953nm. It was created to support short wavelength division multiplexing (SWDM), which is one of the many new technologies being developed for transmitting 40Gb/s and 100Gb/s. In June 2016, ANSI/TIA-492AAAE, the new wideband multimode fiber standard, was approved for publication. And in October of 2016, OM5 fiber was announced as the official designation for cabling containing WBMMF (Wide Band Multimode Fiber) by ISO/IEC 11801. From then on, OM5 may be a potential new option for data centers that require greater link distances and higher speeds.

What Is OM4 Fiber?

OM4 is laser-optimized 50um fiber having 4.7GHz*km EMB bandwidth designed for 10 Gb/s, 40 Gb/s, and 100 Gb/s transmission. OM4 fiber has been on the market since 2005, sold as premium OM3 or OM3 fiber. The OM4 cable designation standardizes the nomenclature across all manufacturers so that the customer has a clearer idea of the product that they are buying. OM4 fiber is completely backwards compatible with OM3 fiber and shares the same distinctive aqua jacket. OM4 was developed specifically for VSCEL laser transmission and allows 10 Gig/second link distances of up to 550 Meters (compared to 300M with OM3) and offers an Effective Modal Bandwidth (EMB) of 4700 MHz-km.

OM4 vs. OM5: What’s the Difference?

Since OM1 and OM2 fiber can not support 25Gbps and 40Gbps data transmission speeds, OM3 and OM4 were the main choices for multimode fiber to support 25G, 40G and 100G Ethernet. However, it’s becoming more costly for optical fiber cable to support next-generation Ethernet speed migration as bandwidth requirements increase. Against such a background, OM5 fiber was born to extend the benefits of multimode fiber in data centers.

The key difference between them is that EMB is specified only at 850 nm for OM4 fiber at 4700 MHz-km, while OM5 EMB values are specified at both 850 nm and 953 nm and the value at 850 nm is greater than that of OM4. Therefore, OM5 fiber offers users longer length distances and more choices in optical fiber. In addition, TIA has specified lime green as the official cable jacket color for OM5, while OM4 is aqua jacket. And OM4 is designed for 10Gb/s, 40Gb/s, and 100Gb/s transmission, but OM5 is designed for 40Gb/s, and 100Gb/s transmission which reduces the fiber counts for high speed transmissions.

What’s more, OM5 cable can support four SWDM channels, each carrying 25G of data to deliver 100G Ethernet using a single pair of multimode fibers. Besides, it is fully compatible with OM3 and OM4 fiber. OM5 is available globally for installations in multiple enterprise environments, from campuses to buildings to data centers. In a word, OM5 fiber is a better choice than OM4 on transmission distance, speed and cost.

Conclusion

OM5 fiber provides next-generation multimode fiber performance for today and tomorrow’s high speed applications. With its significantly higher bandwidth, it can be assured that multimode fiber will continue to provide the most cost effective solutions for short reach applications in data centers and LANs. OM5 precisely meets the demands, and it will be your preferable choice for your data centers.

How To Repair The Accidentally Cut Fiber Optic Cables

Underground fiber optic cables can be accidentally cut. The most typical factor which could cause this accident may be the utilization of backhoe while digging. If it happens to you, you can simply search for backhoe and obtain the cut cables.

However, if it is brought on by moles, it will likely be difficult for you to troubleshoot it. You will need some equipment to involve. Here are a few steps suggested for you.

The first thing you need to do is to look for the break in your cable. Commonly, the fiber-optic technicians utilize a device which is known as an optical time-domain reflectometer or OTDR. With the ability to work like radar which sends a light pulse right down to the cable. It will be deflected to your device when it encounters break. It helps technician knows the position of the break.

After knowing the location of the break, you should dig up the cable with the break. Then, strip the fiber around 9 feet of the cable using cable rip cord. Peel the jacket gently so the fiber-optic tubes exposed and get rid of the excess jacket. Then, clean that cable gel using cable gel remover and cut any sheath and yarn. Separate the tubes from the fiber. Avoid damaging the strength member as it is required to hold the cable in fiber splice closure.

The next matter you need to do is to expose fiber cladding at 2 inches by using a fiber-coating stripper oral appliance clean the fiber within the tubes. Trim any damage on the fiber ends using high-precision fiber cleaver. If you want to perform a fusion splice, you have to convey a fusion splice protector to the fiber. Hereafter, you have to clean that striped fiber using lint-free wipes that is soaked in alcohol. In addition, if you want to produce a mechanical connection, you need to put quick-connect fiber-optic connectors to the fiber and clean the stripped fiber with alcohol and lint-free wipes. Ensure that the fiber doesn’t touch anything.

If you make a fusion splice, you have to place the fibers which is spliced within the fusion splicer. Then, fire the fusion splicer in line with the manual. After that, you have to move the fusion connector right into a heat shrink oven. Press a button to heat shrink. In some cases, the fusion splice is preferable to mechanical splice because the signal loss is under 0.1 decibels (dB). However, the mechanical splice has signal loss under 0.5 dB. The very last thing would be to see the connection of fiber-optic using the OTDR. Then put back those splices in to the splice enclosure. Close the enclosure after which rebury the cable.

BiDi GBIC Transceiver Module

BiDi GBIC Transceiver Module

by Fiber-MART.COM

fiber-mart.com offers Single Fiber BiDi GBIC Transceiver Modules designed for optical communications up to 20km with data rates up to 1.25Gbps.

The BiDi GBIC transceiver modules operate on a single strand of standard SMF, and a 1000BASE-BX-D transceiver is always connected to a 1000BASE-BX-U transceiver with a single strand of standard SMF.

 

The communication over a single strand of fiber is achieved by separating the transmission wavelength of the two devices, for example, 1000BASE-BX-D transmits a 1550-nm channel and receives a 1310-nm signal, whereas 1000BASE-BX-U transmits at a 1310-nm wavelength and receives a 1550-nm signal. A wavelength-division multiplexing (WDM) splitter will be integrated into the BiDi SFP to split the 1310-nm and 1550-nm light paths.

 

The 1.25Gbps Single Strand BiDirectional (BiDi) GBIC transceiver modules of fiber-mart.com will undergo strict qualifying tests. In order to ensure the compatibility with those brands such as Cisco, HP, Juniper, Huawei, etc, we will test the BiDi GBIC transceiver module in those related switches and routers. All fiber-mart.com BiDi GBIC transceiver modules are ROHS compliant, allow for real-time diagnostic monitoring as per SFF-8472 and designed to Multi-Source Agreement (MSA) standards.

 

Ordering Information

Part Number	Description
Z-GBIC-GE-BX-U3155-20	1000Base-BX-U BiDi GBIC Module, 1310nm, SMF, 20KM
Z-GBIC-GE-BX-D5531-20	1000Base-BX-D BiDi GBIC Module, 1550nm, SMF, 20KM
Z-GBIC-GE-BX-U3149-20	1000Base-BX-U BiDi GBIC Module, 1310nm, SMF, 20KM
Z-GBIC-GE-BX-D4931-20	1000Base-BX-D BiDi GBIC Module, 1490nm, SMF, 20KM

Pluggable Fiber Optic Transceivers

Pluggable Fiber Optic Transceivers

by Fiber-MART.COM

An optical transceiver can best be described as a device that converts high-speed data from a cable source to an optical signal for communication over optical fiber. Optical transceivers are used to update the communications networks to manage broadband, to update the data center networks to make them manage traffic with higher speeds, to implement the backbone network for mobile communications.

 

For transceivers that plugs into Gigabit Ethernet and links to a fiber optic network, the Gigabit Interface Convertor is the standard and SFP is for small form factor pluggable transceiver. The GBIC transceiver operates as an input and output transceiver and is linked with the fiber optic network generally through the optic patch cords. GBIC transceivers are deemed to be ideal for any interconnections over the Gigabit Ethernet centers and for switches environment. The converters are virtually intended for high performance and continuing interactions that have need of gigabit or fiber channel interconnections. From SFP, users are able to generate connections utilizing the multi or single mode fiber optic ports along with the copper wiring.

The GBIC transceiver and the Cisco SFP offer companies with the opportunity to set up a Fiber Channel and Gigabit Ethernet connection effortlessly within their network. However, many Cisco GBIC transceivers would be the Cisco GLC-SX-MM, GLC-T, GLC-LH-SM, GLC-ZX-SM, and so much more. There are also 155M/622M/1.25G/2.125G/4.25G/8G/10G SFP optical transceivers, among which 155M and 1.25G are used widely on the market.

 

GBIC, SFP, SFP+, SFP, 1×9 covers low rate to 10G products, and is fully compatible with the global mainstream vendor equipment. And 10G SFP+ technology is becoming mature, with rising trend development of demand. 10G SFP optical module has been through development of 300Pin, XENPAK, X2, XFP, ultimately achieving to transmit 10G signals by the same size with SFP, and this is SFP+. SFP+, by its virtue of small size and low cost, meets the high-density requirements of devices to optic modules. Since 2010, it has replaced XFP and become the main stream in 10G market.

 

The SFP+ modules support digital diagnostics and monitoring functions, which are accessed through a 2-pin serial bus and provide calibrated, absolute real-time measurements of the laser bias current, transmitted optical power, received optical power, internal QSFP transceivers temperature, and the supply voltage. Digital diagnostic functionality allows telecommunication and data communications companies to implement reliable performance monitoring of the optical link in an accurate and cost-effective way.

 

Optical transceiver market driving forces relate to the increased traffic coming from the Internet. The optical transceiver signal market is intensely competitive. There is increasing demand optical transceivers as communications markets grow in response to more use of smart phones and more Internet transmission of data. The global optical transceiver market will grow to $6.7 billion by 2019 driven by the availability of 100 Gbps devices and the vast increases in Internet data traffic.

 

A palette of pluggable optical transceivers includes GBIC, SFP, XFP, SFP+, X2, CFP form factors are available at FiberStore. These are able to accommodate a wide range of link spans. The 10Gbps optical transceivers can be used in telecom and datacom (SONET/SDH/DWDM/Gigabit Ethernet) applications to change an electrical signal into an optical signal and vice versa.

Brief introduction of FTTx Network

Brief introduction of FTTx Network

Concept of FTTx

 

A simple understanding of FTTx is Fiber to the x, x here can be replaced such as H for home, B for building, C for curb or even W for wireless etc. It is a new technology used in today’s network. As we know, compared to copper or digital radio, fiber’s high bandwidth and low attenuation easily offset its higher cost. To install fiber optics all the way to the home or the users’ working places has always been the goal of fiber optic industry. Thanks to optical fiber all the way to subscriber, we can get unprecedented higher speed in enjoying more services at home, such as teleworking, tele-medicine, online shopping and so on. It is precisely because the demands for bandwidth keeps spiraling upwards, FTTx technology now is very popular with people and has to be imperative.

 

FTTx Enabling Technologies

Architectures

According to the different termination place, the common FTTx architectures include these following types:

 

1. FTTC: Fiber To The Curb (or Node, FTTN)

 

Fiber to the curb brings fiber to the curb, or just down the street, close enough for the copper wiring already connecting the home to carry DSL (Digital Subscriber Line). Actually, FTTC bandwidth depends on DSL performance where the bandwidth declines over long lengths from the node to the home. Though the cost of FTTC is lower than FTTH in the first time installation, it is limited by the quality of the copper wiring currently installed to or near the home and the distance between the node to the home. Thus, in many developed, FTTC is now gradually upgrade to FTTH.

 

2. FTTH Active Star Network

 

FTTH active star network means that a home run active star network has one fiber dedicated to each home. It is the simplest way to achieve fiber to the home and offers the maximum amount of bandwidth and flexibility. However, this architecture generally needs a higher cost, as the requirements of the both in electronics on each end and the dedicated fibers for each home.

 

3. FTTH PON (Passive Optical Network)

 

The FTTH architecture consists of a passive optical network (PON) that allows several customers to share the same connection, without any active components (i.e., components that generate or transform light through optical-electrical-optical conversion). In this architecture, it usually needs a PON splitter. PON splitter is bi-directional, that is signals can be sent downstream from the central office, broadcast to all users, and signals from the users can be sent upstream and combined into one fiber to communicate with the central office. The PON splitter is an important passive component used in FTTH networks. There are mainly two kinds of passive optical splitters: one is the traditional fused type splitter as known as FBT coupler or FBT WDM optical splitter, which features competitive price; the other is the PLC splitter based on the PLC (Planar Lightwave Circuit) technology, which has a compact size and suits for density applications. Because it cuts the cost of the links substantially by sharing, this architecture is more prefered by people when choosing the architecture.

 

FTTx/PON Protocols

 

There are two major current PON standards: GPON(gigabit-capable PON) and EPON(Ethernet PON). The fomer uses IP-based protocol, based originally on ATM protocols but in its latest incarnation using a custom framing protocol GEM. EPON is based on the IEEE standard for Ethernet in the First Mile, targeting cheaper optical components and native use of Ethernet. In addition, there is BPON(broadband PON), was the most popular current PON application in the beginning. It also uses ATM as the protocol (BPON digital signals operate at ATM rates of 155, 622 and 1244 Mb/s).

 

Future Trends

 

Doubtless, FTTx technology will continue to spread. With the higher and higher requirement of the network speeds, the requirement of FTTx is also improved both in technology and cost saving. And the next generation of PONs, such as 10G GEPON, WDM PON etc. also play an important role in the FTTx development. Maybe one day, we could enjoy the FTTd, ie. fiber to the desk and enjoy a avariety of modern network services.

Common Passive Fiber Optical Splitters

Common Passive Fiber Optical Splitters

by Fiber-MART.COM

Fiber optic splitter, also named fiber optic coupler or beam splitter, is a device that can distribute the optical signal (or power) from one fiber among two or more fibers. Fiber optic splitter is different from WDM (Wavelength Division Multiplexing) technology. WDM can divide the different wavelength fiber optic light into different channels, but fiber optic splitter divides the light power and sends it to different channels.

 

Work Theory of Optical Splitters

Optical splitters “split” the input optical signal that received by them between two optical outputs, simultaneously, in a pre-specified ratio 90:10 or 80:20. The most common type of fiber optic splitter splits the output evenly, with half the signal going to one leg of the output and half going to the other. It is possible to get splitters that use a different split ratio, putting a larger amount of the signal to one side of the splitter than the other. Splitters are identified with a number that represents the signal division, such as 50/50 if the split is even, or 80/20 if 80% of the signal goes to one side and only 20% to the other.

 

Some types of the fiber optic splitter are actually able to work in either direction. This means that if the device is installed in one way, it acts as a splitter and divides the incoming signal into two parts, sending out two separate outputs. If it is installed in reverse, it acts as a coupler, taking two incoming signals and combing them into a single output. Not every fiber optic splitter can be used this way, but those that can be labeled as reversible or as coupler/splitters.

 

Passive and Active Splitters Overview

 

Fiber optic splitters can be divided into active and passive devices. The difference between active and passive couplers is that a passive coupler redistributes the optical signal without optical-to-electrical conversion. Active couplers are electronic devices that split or combine the signal electrically and use fiber optic detectors and sources for input and output.

 

Passive splitters play an important role in FTTH (Fiber To The Home) networks by permitting a single PON (Passive Optical Network) network interface to be shared among many subscribers. Splitters include no electronics and use no power. They’re the community parts that put the passive splitter in PON network and are available in a wide range of break up ratios, including 1:8, 1:16, and 1:32.

 

Common Types of Passive Fiber Optic Splitter

 

Optical splitters are available in configurations from 1×2 to 1×64, such as 1:8, 1:16, and 1:32. There are two basic technologies for building passive optical network splitters: Fused Biconical Taper (FBT) splitter and Planar Lightwave Circuit (PLC) splitter. FBT coupler is an older technology and generally introduces more loss than the newer PLC Splitter. But both are used in PON network. Here is a brief introduction to them.

 

FBT Splitter

 

FBT coupler is a traditional technology with which fiber optic products can be made at a low cost but high-performance way. As this technology has developed over time, the quality of FBT splitters is good and they can be implemented in a cost-effective manner. Now FBT splitter is widely used in passive networks, especially where the split configuration is relatively smaller such as 1×2, 1×4, 2×2, etc. The following is a FBT splitter with ABS box.

 

PLC Splitter

 

PLC splitter offers a better solution for applications where larger split configurations are required. It uses an optical splitter chip to divide the incoming signal into multiple outputs. As the wide use of PLC splitter, there are various types of PLC splitter on the market. For example, blockless PLC splitters, fanout PLC splitter, bare PLC splitter, tray type PLC splitter, ABS PLC splitter, mini-plug in type PLC splitter, etc. Here is a 1×4 PLC splitter.

 

Summary

 

Enabling a single fiber interface to be shared among many subscribers, fiber optic splitter plays an increasingly significant role in many of today’s optical networks. As a professional optical products supplier, Fiberstore offers different types of high-quality splitters for your applications. If you want to know more details, please visit fiber-mart.com.

Requirements and Challenges for 100G Metro Network

Requirements and Challenges for 100G Metro Network

by Fiber-MART.COM

Requirements and Challenges for 100G Metro Network

 

With the rapid increase of data traffic by about 40% each year, the dominant 10Gb/s optical networks were soon saturated. 40G was also complemented in existing WDM networks with cost-effective 40G equipment. Yet 40G isn’t enough. Several providers have deployed 100G in long-haul (LH) backbone applications in recent years by using novel fibers and advanced optical components, but overlaying 100G in metro network is still facing many challenges. This post will discuss the requirements for 100G metro network and the challenges faced during this change.

Requirements for 100G Metro Network

 

Similar to 10G metro, 100G networks begin with the use of 100G transceivers and dense wavelength division multiplexing (DWDM) multiplexers/de-multiplexers. For some applications, optical amplifiers and dispersion compensation modules are needed.

 

The metro segment covers a broad range of distances. It can generally be divided to three subcategories: metro access (40 to 100 km), metro core (100 to 500 km) and metro regional (500 to 1000 km). The metro core and the metro regional typically include a large number of reconfigurable-optical-add/drop-multiplexer (ROADM) nodes. The metro access links are generally point-to-point connections.

 

Although DWDM metro distances are shorter than long-haul links, the transmission requirements for 100G metro are quite challenging with a large number of ROADMs and the fact that the metro fiber is often older and can include many interconnected parts that cause higher loss. In addition, it is likely that 100G metro wavelengths will coexist with existing 10G wavelengths. The coexistence of brownfield and greenfield deployments requires the support of links with and without in-line dispersion compensation. It is essential to use the available fiber bandwidth since installation of new fiber is high cost in a metro environment. Since metro is two or three times larger in size, it is more cost-sensitive and has higher requirements on the space for line-card density than LH networks in achieving the same capacity.

 

Challenges in Deploying 100G Metro

 

In long-haul networks, coherent transceivers are successfully used. But the size, power consumption and cost of today’s coherent transceivers are not suitable for metro networks where port-density is important. Designing a performance-, size- and cost-optimized single-wavelength coherent 100G metro transceiver is very desirable but quite challenging. To achieve this, C-form factor pluggable (CFP) coherent modules are taking into consideration. CFP coherent modules supporting 10 x 10G and 4 x 25G, and smaller size CFP2 and CFP4 coherent modules supporting 4 x 25G are considered good choices for 100G metro. Another choice is the nonpluggable 4 x 5-inch multisource agreement (MSA) module based on Optical Internetworking Forum (OIF) standards.

 

Though the 100G metro schemes with coherent modules seem to be clear, there are still questions about pluggable modules. Pluggable slot is generally designed as “universal slot” that could be flexibly used for client- or network-slide optics, but as the client side is moving from CFP to CFP2/CFP4, the ability of such universal slot will be lost unless the coherent modules keep pace.

 

As mentioned before, unlike LH links, metro consists of a lot of ROADMs. To achieve 100G performance, the metro needs to handle the increased loss created by growing number of ROADMs. Also it has to deal with the higher loss in old fiber to ensure desired transmission quality.

 

Also there are many challenges in satisfying requirements for low power consumption, high port density, low latency, and standardized data-rate and modulation formats for 100G metro network.

 

Conclusion

 

There is still a long way to go for the implementation of cost-effective and high-performance 100G metro network. However, the challenges in network and optical areas will finally turn to reasons for the achievements in metro network development. The cost will be driven down and the applications of 100G metro will be prevalent. fiber-mart.com provides major brands compatible QSFP28, CFP and CFP2 modules and generic CFP4 modules for your upgrading to 100G infrastructures. If you are in need of other fiber optic modules, you can also visit our web site for more information.

Tools used in fiber optic cable splicing process

Tools used in fiber optic cable splicing process

by Fiber-MART.COM

Fiber optic cable splicing process needs some important tools.

 

First, a Fusion Splicer is essential. fiber-mart.com recommend swift f1 fusion splicer –New Ilsintech Swift-F1 All in One Fusion Splicer. Swift F1 is the highly sophisticated and integrated clad alignment fusion splicer, which has been designed to perform the major 5 multifunctional features systematically: heating, stripping, cleaning, cleaving, splicing and sleeving. The Swift F1 has been designed for fusion splicing and splice-on connector (Swift Connector) of FTTH network applications. The structural and complementary features of Swift F1 have been applied to the design of Swift Connectors to resolve the problems of mechanical connectors in past: low quality, weak durability and high maintenance cost. Swift F1 has turned around the way that the connector users, who were used to thinking previously, as from the installation and maintenance costs of splice-on connector, had been more expensive than a mechanical connector to more cost effective than mechanical connector purchasing cost of splice-on connector. Swift F1 is a versatile fusion splicer which can perform all kinds of FTTH fusion splicing for the ordinary 0.25mm, 0.9mm, 2mm~3mm cable, indoor cable and others splicing connectors. All in all, this Swift-F1 is a revolution of a splicer.

Second,a Fiber Cable Stripper is indeed needed. fiber-mart.com supply many types of fiber strippers. The fibre optic strippers play an important role in fiber optic cable splicing process. A good quality fiber stripper will safely and efficiently remove the outside jacket from an optical fiber cable, and can help you speed up the process of performing fiber network maintenance work and avoid excessive network downtime. Only with a properly strip of the fiber cable jacket can make an undamaged exposed fiber which is also a must for successful splicing of two optical fibers. Explore the stripping tools below to find exactly what you need. For more information, please contact our sales representative right now. Save your time & money for your business or project !

 

At last, fiber adapters will be used in the connection of the two parts. A fiber adapter (also called as flange) is a fiber connection component. It includes many varieties such as FC, SC, ST, LC and MTRJ. Fiber adapters are widely used in ODF, fiber transmission equipment and instrument etc. All of them, FC to FC fiber adapters are used very ofen. We supply LC, FC, SC, ST and MTRJ fiber optic adapters, including simplex, duplex and quad types; these Simplex or Duplex Multimode or Single-mode or 10G OM3 Adapter come with flange and are Zirconia. You can buy fiber optic connection products on our store with your confidence. All of fiber optics supplies with high quality but low price.

Optical Solutions for HP 5820 Switch Series

Optical Solutions for HP 5820 Switch Series

by Fiber-MART.COM

HP 5820 switch series, namely HP FlexFabric 5820 switch series, is designed to support 1 and 10 Gigabit Ethernet (GbE) networks. The extensible embedded application capabilities enable these switches to integrate services into the network, consolidating devices and appliances to simplify deployment and reduce power consumption and rack space. Also, using the right optical components will facilitate the high performance of the switches. And this article will provide the optical solutions such as fiber optic transceivers and direct attach cables that are supported by HP 5820 switch series.

 

Overview of HP 5820 Switch Series

The HP 5820 switch series provides a versatile, high-performance and 1/10GbE top-of-rack (ToR) data center switch architecture with deployment flexibility. It supports advanced features by delivering a unique combination of unmatched 10 GbE, high-availability architecture, full layer 2/3 dual-stack IPv4/IPv6 and line-rate, low-latency performance on all ports. HP 5820 switches can be used in high-performance and high-density building or department cores as a part of a consolidated network, or be used in campus and data center networks for the high-performance layer 3, 10 GbE aggregation. The total switching capacity of HP 5820 switch series can reach up to 488 Gbps supporting as much as 363mpps throughput. The models offer 14 or 24 ports for high-performance applications with RJ45, SFP+ server connectivity and expansion slot.

 

Models of HP 5820 Switch Series

 

There are three models of HP 5820 switch series including HP 5820-14XG-SFP+ switch (JC106B), HP 5820-24XG-SFP+ switch (JC102B) and HP 5820AF-24XG switch (JG219B). These switch models are hot-swappable and support cut-through switching for very low latency. The biggest difference is their disposition of I/O ports.

 

Optical Solutions for HP 5820 Switch Series

HP 5820 switch series is available with 1 GbE and 10 GbE data links. The following tables provide the optical solutions of SFP transceivers, SFP+ transceivers, 10G SFP+ to SFP+ direct attach copper cables and 40G QSFP+ to 4x10G SFP+ direct attach copper breakout cables supported by the switch series.

 

Conclusion

The flexible and high-performance HPH 5820 switch series is a good option for 1 GbE and 10 GbE networks over buildings, campus and data centers. The optics listed in the tables are all provided by fiber-mart.com with 100% compatibility. If you want to purchase these high-quality fiber optic transceivers and direct attach cables at a reasonable price, fiber-mart.com is the right place to go.

A BRIEF INTRODUCTION OF FOUR KINDS OF SFP BI-DIRECTIONAL TRANSCEIVER

A BRIEF INTRODUCTION OF FOUR KINDS OF SFP BI-DIRECTIONAL TRANSCEIVER

by Fiber-MART.COM

Firstly, let’s get know something about the SFP, which is short for Small Form-factor Pluggable.The (SFP) is a compact, hot-pluggable transceiver used for both telecommunication and data communications applications. The form factor and electrical interface are specified by a multi-source agreement (MSA). It interfaces a network device mother board (for a switch,router, media converter or similar device) to a fiber optic or copper networking cable. It is a popular industry format jointly developed and supported by many network component vendors. SFP transceivers are designed to support SONET, Gigabit Ethernet, Fibre Channel, and other communications standards. Due to its smaller size, SFP obsoletes the formerly ubiquitous gigabit interface converter (GBIC); the SFP is sometimes referred to as a Mini-GBIC although no device with this name has ever been defined in the MSA.

 

Then, what we need to know is four different kinds of the SFP BiDi transceiver.

 

GLC FE 100BX U is Cisco SFP fiber transceiver with single LC port, the GLC FE 100BX U SFP is with 1310TX and 1550RX, GLC FE 100BX U typical working distance is up to 10km. GLC FE 100BX U work on single mode optical fiber, it is fully compatible with IEEE standards for 100Base network, GLC FE 100BX U is used to connect the relevant SFP ports to the fiber optic networks via the single LC fiber connector interface.

 

GLC FE 100BX D is Cisco SFP fiber transceiver module used in 100Base network, GLC FE 100BX D operate via single mode optical fiber with 1550TX and 1310RX, GLC FE 100BX D max working distance is 10km. GLC FE 100BX D use a single LC connector to link the fiber optic network while the other end of the transceiver will fit into the SFP slot or ports on switches or routers.

 

Cisco GLC BX U SFP is single mode transceiver with 1310 TX and 1490 RX, it is compliant to 1000Base BX standards, this transceiver work in pair with GLC BX D. GLC BX U is with LC duplex connectors and its max working span is 10km over SMF. It is hot swappable to plug into the SFP slot or ports, linking these ports to the fiber optic network.

 

Cisco GLC BX D SFP transceiver is a BIDI transceiver work with single mode fiber, it is 1490nm TX and 1310nm RX, typical working span of the GLC BX D is 10km over SMF. GLC BX D is dual LC optical port and small form -pluggable package. We supply Cisco GLC BX D equivalent transceivers that are compliant to 1000Base BX standards.

 

Just a brief introduction about the SFP Bi-directional transceiver, if you want to know more about that, please pay more attention to our blog!

What's PON?

by Fiber-MART.COM

Defination

 

Passive optical network-PON is a network that brings optical fiber singal to the end of users by the point-to-multipoint(P2MP) fiber to the premises in which optical splitters are used to “broadcast” signals to many users. A PON consists of an optical line terminal (OLT) at the service provider’s central office and a number of optical network units (ONUs) near end users. PONs also are called fiber to the home (FTTH) networks. Using PON system can reduce. The cost of the system substantially by sharing one set of electronics and an expensive laser with up to 32 homes. The main disadvantage is a shorter range of coverage limited by signal strength. While an active optical network (AON) can cover a range to about 100 km (62 miles), a PON is typically limited to fiber cable runs of up to 20 km (12 miles).

 

PON Groups

APON

The first PON systems that achieved significant commercial deployment had an electrical layer built on Asynchronous Transfer Mode (ATM, or “cell switching”) and were called “APON.” These are still being used today. APON systems typically have downstream capacity of 155 Mbps or 622 Mbps, with the latter now the most common. Upstream transmission is in the form of cell bursts at 155 Mbps.

 

BPON

BPON, or broadband PON, was the most popular current PON application in the beginning. BPON uses ATM as the protocol. ATM is widely used for telephone networks and the methods of transporting all data types (voice, Internet, video, etc.) are well known. BPON digital signals operate at ATM rates of 155, 622 and 1244 Mb/s.

 

GPON

GPON, or gigabit-capable PON, uses an IP-based protocol and either ATM or GEM (GPON encapsulation method) encoding. which has a variety of speed options ranging from 622 Mbps symmetrical (the same upstream/downstream capacity) to 2.5 Gbps downstream and 1.25 Gbps upstream. From GPON, the future could take two branches: 1) 10 GPON would increase the speed of a single electrical broadband feed to 10G; and 2) WDM-PON would use wavelength-division multiplexing (WDM) to split each signal into 32 branches.

 

EPON or Ethernet PON is based on the IEEE standard for Ethernet in the First Mile. EPON 802.3ah specifies a similar passive network with a range of up to 20 km. It uses WDM with the same optical frequencies as GPON and TDMA. The raw line data rate is 1.25 Gbits/s in both the downstream and upstream directions. EPON is widely deployed in Asia. The system architecture is the same as GPON but data protocols are differenet.

---

FIBER-MART(Fiber-Mart.com), based in HongKong & U.S., belongs to SUNMA Group, a worldwide leading supplier in fiber optic network, fttx, fiber cabling & connectivity, fiber testing, fiber splicing, fiber polishing, fiber blowing & integrated network solutions. 

THE INS AND OUTS OF HDMI SPLITTERS

THE INS AND OUTS OF HDMI SPLITTERS

Today, fiber-mart.com is going to be HDMI splitters. I guess we should start with the basics. An HDMI splitter allows you to split one HDMI source signal to two or more outputs. Most HDMI splitters are 1:2, meaning you start with one source and can split the signal into two. We offer other configurations that will support just about any situation. Including even things like sports bars with many displays. You might use an HDMI splitter to duplicate the signal from your cable box so you can watch it on two televisions. An HDMI splitter is not to be confused with an HDMI switch. The most popular question I get on a day to day basis would be just that. The difference between an HDMI splitter and an HDMI switch. Again, an HDMI splitter allows you to send a signal from 1 source to multiple displays and an HDMI switch allows you to plug in multiple HDMI sources (Blueray, Cable/Sat box, etc.) to a display. Using a switch is common for people who run out of HDMI inputs on their TV.

There are also products out there called HDMI repeaters that will boost a signal when running long HDMI cables typically starting around the 50ft marker. But the repeaters and switches can be covered at another time. It just seems I get lots of customers asking about those three items and their differences. So hopefully that clears things up for everyone.

 

Now back on track with the main reason for today's writing. HDMI splitters and how to choose. HDMI splitter styles, types and prices can vary. A couple things to look at would be the resolution support the switch offers. The output source (such as your Blueray) cannot always match the display devices resolution capabilities. Fortunately, the configuration and design of many of the HDMI splitters make it possible for high quality signal to be sent to each and every output. The HDMI cables that you use can make a difference as well. A general rule of thumb is getting your hands on a thicker gauge cable or something with some high speeds. Length is a big deciding factor here as well. The thicker gauge cable such as 26 AWG are recommended for lengths of 3 to 15ft and for anything longer try getting into the 22 AWG range. This will ensure the best possible connection with little to no resistance. Luckily most of our splitters are powered and can boost signals up to 50ft. Resolution is another topic to cover briefly.

 

Your picture quality is limited to resolution that BOTH TVs support - no matter how great your cables are, or how amazing your splitter is. If your running full 1080p out of a Blu-Ray player and into one 720p TV and one 1080p, you will be limited to the 720p.  I hope some of this information was found useful. It was just a basic rundown of questions and topics that come up through my day with customers. If you have questions or concerns feel free to call or email our techs.

Brief Introduction of Optical Passive Categories

Brief Introduction of Optical Passive Categories

Optical passive devices is an important part of the communication device, but also the other optical components indispensable application areas. There are mainly four categories of Optical Passive.

 

(A) Active Fiber Optic Cable Connector

Fiber optic cable connector is connected to two active optical fiber to form a continuous optical path and can be repeated assembly and disassembly of passive components; also has the fiber optic cable with active devices, fiber optic cable and other passive components, fiber optic cables and systems and instrumentation carry out activities connections. Active connector along with the development of optical communication development, has now formed a complete range, a wide variety of systems products, fiber applications are indispensable, the most widely used component of the foundation.

 

Their function can be divided into the following sections: Connector plugs, fiber jumpers, converters, inverters, etc. These components may be used alone as the device, a component can be used together. In fact, an active connector is used to refer two connector plug plus a converter.

Optical Passive Categories

 

(B) Optical Attenuator

Optical attenuator is a certain amount of optical power can attenuation device. Optical attenuator can be broadly divided into fixed and variable types. Fixed attenuator and variable attenuator of the main indicators of its attenuation accuracy, precision, and stability or repeatability, as well as applicable wavelength region.

A fixed optical attenuator fixed amount of attenuation of the optical path of the light energy is mainly used for its excellent temperature characteristics. Debugging the system, commonly used in analog optical signals through a fiber attenuation and the corresponding relay station or decrease in the optical power of the room to prevent the optical receiver saturation; also be calibrated for an optical measuring instrument calibration.

 

For different line interface, you can use different fixed attenuator; if the interface is a pigtail type available pigtail type optical attenuator welded to the optical path between the two sections of fiber; If you are debugging the system connector interface converter or inverter-type fixed attenuator. In practical applications often require attenuation amount of the optical attenuator can be changed with the user needs. Therefore, the variable attenuator wider range of applications. For example, EDFA, CATV optical system design margin of the actual system is not exactly the same, the optical power margin of the system BER assessment, to prevent the receiver is saturated, it must be inserted in the system variable optical attenuator, another , fiber optics (such as a power meter or OTDR) measurement, calibration will also use the variable attenuator. From the perspective of market demand, on the one hand, the optical attenuator development toward miniaturization, serialization, low price direction. On the other hand, due to the common type optical attenuator, optical attenuator is development direction toward high-performance, intelligent optical attenuator, high return loss optical attenuator.

 

(C) Optical Switch

 

Optical switch is an optical path control device, the optical path switching plays a role in the optical fiber transmission network and a variety of optical switching systems, computer control can be achieved spectral exchange, to achieve between the terminals, between the center terminal and the distribution of information and exchange intelligence; in the ordinary optical transmission system, an optical path for the active and standby switching can be used in optical fiber, optical devices and optical fiber sensor network test, the optical fiber transmission systems, measuring instruments or the sensing system is stable and reliable easy to use.

 

CATV optical network in order to ensure uninterrupted operation of cable systems, should be equipped with a backup optical transmitter, an optical transmitter is working when a failure, the use of optical switch can be in a very short time (less than 1ms) to Backup optical transmitter access system to ensure it is working properly.

 

According to its operating principle, the optical switch can be divided into mechanical and non-mechanical two categories. Mechanical optical switch optical fiber or optical components by moving the optical path changes, currently on the market are generally mechanical optical switch, the advantage of low insertion loss, typically less than 1.5dB; high isolation, typically greater than 45dB, and without polarization wavelength effects. Non-mechanical optical switch is to rely on electro-optic effect, magneto-optical effect, sound and light effects and thermo-optic effect to change the refractive index of the waveguide, the optical path is changed, which is a new technology, the advantages of this type of switch: switch time is short, Small size, easy integration of optical or electro-optical integration; deficiencies are large insertion loss, isolation is low.

(D) WDM Multiplexer and Demultiplexer

 

Optical wavelength division multiplexing (WDM) technology in an optical fiber multiple wavelengths of light simultaneously transmitted carrier signal, and each optical carrier by FDM or TDM mode, each carrying multiple analog or digital signals. The basic principle is the sending side optical signals of different wavelengths are combined (multiplexed), and is coupled to the same fiber optical cable for transmission, the receiving end turn these combined signals at different wavelengths separated ( demultiplexing), and further processed to recover the original signal into a different terminal. Therefore, this technology called optical wavelength division multiplexing, short wavelength division multiplexing technologies.

---

FIBER-MART(Fiber-Mart.com), based in HongKong & U.S., belongs to SUNMA Group, a worldwide leading supplier in fiber optic network, fttx, fiber cabling & connectivity, fiber testing, fiber splicing, fiber polishing, fiber blowing & integrated network solutions. devoting on the research & development, design, manufacture, and fiber connectivity network solutions for carriers, ISPs, content providers and networks, has always engaged in high-performance and innovation.