Category: Fiber Transceivers

With the growing demand of broadband, Passive Optical Network (PON) is the most promising NGN (Next Generation Networking) technology to meet the demand currently. GEPON (Gigabit Ethernet Passive Optical Network) use WDM technology and it is with 1Gbps bandwidth and up to 20km working distance, which is a perfect combination of Ethernet technology and passive optical network technology.

GEPON Technology:

The GEPON (Gigabit Ethernet Passive Optical Network) system is composed of the Optical Line Terminal (OLT), Optical Distribution Network (ODN) and Optical Network Unit (ONU). The ODN consists of only passive elements splitters, fibre connector and fiber optics. PON means passive optic network, EPON is integrated with Ethernet technologies, and GEPON is a Gigabit EPON. GEPON system is designed for telecommunication use. This series of products features high integration, flexible application, easy management, as well as providing QoS function. The fiber network speed can reach up to 1.25GB/s and each EPON OLT (Optical Line Terminal) system can distribute into 32 remote ONU (Optical Network Unit) to build up the fiber passive network by a max 32-way optical splitter with the advantage of big capacity of data transmission, high security, flexibility of buildup network, mainly applies for FTTH (Fiber To The Home) projects, which can access to IP telephone, Broadband data and IPTV.

GEPON is a perfect combination of Ethernet technology and passive optical network technology. It eliminates the usage of active fiber optic components between OLT and ONU, this will greatly cut the cost and make the network easier to maintain. GEPON use WDM technology and it is with 1Gbps bandwidth and up to 20km working distance.

Optical Splitter Work In GEPON Network:

Passive Fiber Optic Splitters For GEPON Network, the Optical Splitter, also named beam splitter, is based on a quartz substrate of integrated waveguide optical power distribution device, the same as coaxial cable transmission system, The optical network system also needs to be an optical signal coupled to the branch distribution, which requires the fiber optic splitter, Is one of the most important passive devices in the optical fiber link, is optical fiber tandem device with many input terminals and many output terminals, Especially applicable to a passive optical network (EPON, GPON, BPON, FTTX, FTTH etc.) to connect the MDF and the terminal equipment and to achieve the branching of the optical signal.

GEPON splitter based on planar lightwave circuit technology and precision aligning process can divide a single/dual optical input(s) into multiple optical outputs uniformly, and offer superior optical performance, high stability and high reliability to meet various application requirements. Our standard modules with GEPON Splitter have “ABS-type” & “Rack-type”. We can also have the customized dimension. If you need the customized service,pls contact us for detail conditions for customization. Our customization includes branding fiber-mart.com or OEM,modifying physical size and appearance and re-designing per customer requirements.

fiber-mart.com provides some kinds of passive optical components, available components include couplers, planar splitters and wavelength division multiplexers (WDMs).We not oly provide the optical components,but also suppply the cheap fiber optic cable.

GBIC transceiver is short term for the Gigabit Interface Converter, it is a media conversion device between Gigabit Ethernet and fiber optic networks, using this single device, connections can be made using single- or multi-mode fiber optic ports as well as copper wiring. You’ll be able to benefit from it in many point-to-point communications applications that involve interconnecting components and exchanging data between Ethernet and fiber optic networks. Through the GBIC transceiver, Gigabit network equipment can directly connect with copper wires, single mode fiber ports or multimode fiber ports.

 Features:

 The GBIC design can be used as hot-swap. GBIC is interchangeable products meet international standards. Gigabit switch with GBIC interface designed interchangeable flexible, take into account a big market share in the market. GBIC Series product specifications are complete, including 850nm, 1310nm, 1550nm ,1470-1610nm four series. Requirements, all products happen to be rigorously tested, fully fulfill the IEEE 802.3z and GBIC-rev-5.5 standard, the performance targets were met or exceeded standards suitable for Gigabit Switch companies are able to use the Cisco whole number of switches and 3COM, INTEL, ALCATEL, AVAYA, EXTREME brand switches as well as other switches comply with GBIC specification.

 GBIC transceiver being a objective of the input / output transceivers. Its one end is inserted into the Gigabit Ethernet ports, for example port network switching equipment. However, attached to said transceiver towards the optical fiber network, usually through an optical fiber jumper. The apparatus characterized by the features, including wavelength, it could be processed, and how efficiently transmit data, the ability needs to operate, and the distance it could transmit data. These are the basic main things to consider when selecting a GBIC transceivers, to make sure that it meets the requirements of network performance.

 The GBIC has become a standard form factor optical transceivers, and can support many different physical media, from traditional copper long-wave single-mode optical fiber length of a couple of hundred kilometers. GBIC is definitely an attractive, because of its flexibility, the typical network equipment. The different optical technology deployed inside the network, IT personnel can get gbic module needs a specific kind of link. The GBIC standard drive flexibility to cut back costs and provide greater flexibility for IT administrators. The GBIC standard non-proprietary and SFF-8053i files defined by the SFF Committee.

 Remarks:

 When install the GBIC modules, please be aware on the alignment groove at the side of the transceiver, and make sure it fit for that Ethernet interface slot and try the insertion, sometimes you may have to transform it 180 degrees to fit for the interface.

 Although GBIC fiber optic transceiver modules are plug and play, we recommend you disconnect all the fiber optic patch cords connected to it before you install or eliminate it.

 fiber-mart.com is leading in fiber optic modules. We are an expert manufacturer and supplier of fiber optic products. Supplies a comprehensive range of fiber optic products, for example fiber optic couplers you’ll find in our store. Buy with full confidence.

Network main transmission capacity continues to expand and improve the rate of optical fiber communication makes the modern information network as the main means of transmission. Dramatic increase in the optical communication network, optical transceiver modules lead to a diversity of needs continuous development technology to meet such application requirements.

Optical module how much you know about it, do not worry, follow my steps slowly to understand. Today, we have to first understand which two optical modules. Cisco SFP vs Cisco XFP .

fiber-mart.com SFP (small form-factor pluggable) 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 motherboard (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, Fiber Channel, and other communications standards.

fiber-mart.com supply various kinds of SFP module 100% compatible with Cisco, HP, Juniper, Net gear, DELL, CWDM SFP, DWDM SFP, BIDI SFP and 10G SFP.As a 3rd party OEM manufacturer, our cisco sfp transceivers are delivered to worldwide from our factory directly. All of our Cisco SFP module are tested in-house prior to shipment to guarantee that they will arrive in perfect physical and working condition.

fiber-mart.com XFP (10 Gigabit Small Form Factor Pluggable) is a hot-swappable optical transceiver is independent of the communication protocol, usually transmitted light wavelength is 850nm, 1310nm or 1550nm for 10G bps SONET / SDH, Fiber Channel, gigabit Ethernet, 10 gigabit Ethernet and other applications, including DWDM link. XFP contains similar SFF-8472 digital diagnostic modules, but extended to provide a powerful diagnostic tool. XFP modules use an LC fiber connector type to achieve high density.

fiber-mart.com XFP transceiver is a high performance, cost effective modules for serial optical data communications applications specified for signal rates of 10.30 Gb/s to 11.3 Gb/s. It is fully compliant to XFP MSA Rev 4.5. The XFP modules are designed for single mode fiber and operates at a nominal wavelength of 850/1310/1550 nm including DWDM XFP, CWDM XFP,BiDi XFP,10G XFP and compatible Cisco XFP, Juniper XFP, Brocade XFP. We guarantee the XFP transceivers to work in your system and all of our XFP comes with a lifetime advance replacement warranty.

SFP and XFP difference:

The 1, SFP and XFP are 10G fiber module, can communicate with each other and with other types of 10G module;

The 2, SFP is smaller than XFP module Dimensions;

The 3, Smaller SFP signal modulation function, serial / deserializer, MAC, clock and data recovery (CDR), as well as electronic dispersion compensation (EDC) function from the module to the motherboard on the card

by http://www.fiber-mart.comHigh-quality internet connectivity gives people a voice, creates opportunities, and strengthens local and global economies. The need for widespread reliable internet connectivity and infrastructure is more apparent now than ever, as heavier reliance on remote work and online communication during the COVID-19 pandemic drives a dramatic surge in global internet usage. And yet, according to the 2020 Inclusive Internet Index, nearly half the world remains unconnected. 

Submarine fiber optic cables, or subsea cables, are among the most important components that enable greater connectivity, but they are not well known. They are important for global network infrastructure, connecting countries, carrying communications, and enabling commerce and education. The importance of internet connectivity to economic growth is well established, but rigorous studies quantifying the impacts are not available for many countries. Our recently announced 2Africa cable, which we are developing with regional and global partners, is one of the largest subsea cable projects in the world. It will interconnect 23 countries in Africa, the Middle East, and Europe, delivering more than the total combined capacity of all subsea cables serving Africa today. At 37,000 kilometers long, 2Africa will be nearly equal to the circumference of the Earth and will link the continent from east to west for the first time. 2Africa will greatly enhance internet capacity and connectivity at a time in which broadband traffic is growing significantly worldwide.

Growth in the demand for broadband technology are driven by trends in the global economy, as high-quality, reliable broadband is increasingly used by many industries to produce and sell goods and services. RTI International, an independent nonprofit research institute, estimates that the impact of 2Africa would likely be an increase of 0.42 to 0.58 percent in African GDP within the first two to three years of going live in 2023–2024. This estimate is based on analysis leveraging empirical evidence, market conditions and trends, and discussions with experts about the effects of broadband on the African economy.

This impact is equivalent to 26.4 to 36.9 billion USD at purchasing power parity (PPP), a metric that accounts for differences in standards of living between countries. From analyzing previous subsea cables, RTI expects to see increases in employment (including high-skilled jobs), greater efficiency and productivity for businesses, and improved access to education, healthcare, and commerce. There will likely be additional impact beyond the two- to three-year period, however, it is too soon to quantify what that impact may be. RTI’s full report about 2Africa is available here. (This research was conducted prior to the COVID-19 pandemic.) Impact of subsea cables in sub-Saharan Africa Understanding the impact of subsea cables is important for designing the policies and prioritizing the infrastructure investments that will be most effective for growth. Based on the estimates from the most current studies, subsea cables and broadband infrastructure investments are among the most effective development policies for economic growth in Africa.

The promise of subsea cables as drivers of economic growth in Africa warrants excitement about the potential economic impact of 2Africa. Today, we are releasing a series of studies by RTI International that analyze the role of subsea cables and broadband connectivity in the economic development of six countries across sub-Saharan Africa. These reports underscore the importance of subsea cables and the connectivity they enable. The six countries — Nigeria, Democratic Republic of Congo, Kenya, South Africa, Mozambique, and Tanzania — show varying degrees of positive results. Four of the six countries studied experienced notable increases in employment, with all other variables controlled for. The results show us how subsea cables and greater connectivity can drive economic growth. RTI used advanced statistical techniques paired with local insights to document the impact that subsea cables and improved connectivity have had on economic development.

The team looked specifically at subsea cable landings over the past 6 to 10 years in each country, controlling for technology trends, population characteristics, and other important factors. These findings underscore the importance of accelerating the growth in connectivity in sub-Saharan African countries. 2Africa is a continuation of our ongoing efforts to expand global network infrastructure. 2Africa is a major investment at an important time for the continent’s economic recovery and will play a large role in supporting tremendous internet expansion to underpin Africa’s growing digital economy. For regions such as sub-Saharan Africa, where more than half of all global population growth between now and 2050 will occur, we look to remove barriers to access. We will continue to collaborate with partners all over the world to help expand and improve global connectivity, close the digital divide, and strengthen economies. We will continue to study and release information about the role of subsea cables in Africa and around the world as we invest in this critical infrastructure.

by http://www.fiber-mart.comOur engineers have spent years working to keep the physical systems that power Facebook products and services cutting-edge, efficient, and capable of scaling as trends such as video and virtual reality have increased the demand for capacity. To provide the 2.7 billion people using our products with the best possible experience, we have designed more efficient servers and data centers, and we have strengthened the long-haul fiber networks that connect our data centers to one another and to the rest of the world. As we bring more data centers online, we will continue to partner and invest in core backbone network infrastructure.

We take a pragmatic approach to investing in network infrastructure and utilize whatever method is most efficient for the task at hand. Those options include leveraging long-established partnerships to access existing fiber-optic cable infrastructure; partnering on mutually beneficial investments in new infrastructure; or, in situations where we have a specific need, leading the investment in new fiber-optic cable routes. In particular, we invest in new fiber routes that provide much-needed resiliency and scale. As a continuation of our previous investments, we are building two new routes that exemplify this approach.

We will be investing in new long-haul fiber to allow direct connectivity between our data centers in Ohio, Virginia, and North Carolina. As with our previous builds, these new long-haul fiber routes will help us continue to provide fast, efficient access to the people using our products and services. We intend to allow third parties — including local and regional providers — to purchase excess capacity on our fiber. This capacity could provide additional network infrastructure to existing and emerging providers, helping them extend service to many parts of the country, and particularly in underserved rural areas near our long-haul fiber builds. Unlike a retail telecommunications provider, we will not be providing services directly to consumers.

Our goal is to support the operators that provide such services to consumers. We will reserve a portion for our own use and make the excess available to others. This means you’ll start to see a Facebook subsidiary, Middle Mile Infrastructure, operating as a wholesale provider (or, where necessary, as a telecommunications carrier). Continuing our commitment to infrastructure investmentsThis work is a continuation of our efforts to develop our network infrastructure. That work began about a decade ago, when a small team of engineers designed and built one of the world’s most energy-efficient data centers from the ground up: software, servers, racks, power supplies, and cooling systems.

 When we began building our newest operational data center in New Mexico, we built a 200-mile cable to connect that facility to the one in Texas. This underground cable is now one of the highest-capacity systems in the United States, with state-of-the-art optical fiber. The resulting cable is more efficient than other high-capacity cables, and our New Mexico data center now has another redundant path to our network.

by http://www.fiber-mart.comFiber optic networks evolved in late 20th century to cater the increasing demands of bandwidth and to allow faster communication networks. Fiber optic Transceivers use a laser as light source which transfer signals through one or more glass strands (fibers). Optical Transceivers have several advantages over the copper/electrical wire communication such as increased communication distance, more bandwidth and higher data rates. Apart from the enormous advantages that optical Transceivers offers, a few extra measures need to be taken as well, to ensure a reliable and robust network, which includes taking care of fiber bends, coupling, splicing and the use of appropriate Transceivers to communicate over the fiber optic network. Fiber optic Transceivers are available in various types and form-factors and evolved from the Gigabit Interface Converter, commonly referred to as GBIC, over Small Form-Factor Pluggable, commonly referred to as SFP up to the C Form-Factor Pluggable, commonly referred to as CFP. 

All of the above mentioned Transceivers provide the interface for the fiber optic to be terminated on the communication equipment (like a switch or router). The choice of the Transceiver depends on various factors which include: • Length of the communication link• Type of fiber optic cable being used, i.e., single-mode or multi-mode• Type of slot on the communication equipment• Bandwidth of the communication link Let us dig deeper into the evolution of the fiber optic Transceivers in the sections ahead. GIGABIT INTERFACE CONVERTER (GBIC) TRANSCEIVERThe GBIC Transceiver was first introduced and standardized in 1990 by the Small Form-Factor Committee (SFF Committee). The primary reason to develop such a Transceiver was to enable the use of fiber optic cables to connect two or more communication devices and allow more bandwidth and longer distance direct links. GBIC Transceivers usually provide up to 1Gbps duplex bandwidth over a single link, although it has been tested for speeds up to 2.5Gbps. GBIC Transceivers commonly use the SC connector to terminate the fiber optic cable.

GBIC Transceivers are also available for 1000BASE-T to terminate the common twisted pair copper cables. One of the main features of GBIC is that it is hot-swappable, i.e., one does not need to power off the communication equipment to insert or remove the GBIC. This allows the communication network to be always-on despite new links being added on it. The dimensions of the GBIC Transceiver as defined by the SFF Committee standard document are 57.15mm x 12.01mm x 30.48mm (L x H x W). The GBIC slot in the communication equipment is also designed keeping the mentioned dimensions in view. SMALL FORM-FACTOR PLUGGABLE (SFP) TRANSCEIVERSFP Transceivers were the next step in the development of fiber optic Transceivers, this one was also developed as a standard by the SFF Committee in 2001. A SFP Transceiver is much smaller in size as compared to its predecessor.

The size of the SFP slot in a communication equipment is somewhat comparable to the normal electrical Ethernet port. Dimensions given in the SFF Committee standard document are given in the following table: Transceiver width, front 13.7 mmTransceiver height, front 8.6 mmTransceiver width, rear 13,4 mmTransceiver height, rear 8,5 mmTransceiver overall length 56,5 mm It is necessary to mention here that several variants of SFPs have been developed to support higher bandwidth using the similar form-factor. In between SFP+, XFP, XENPAK, X2 are Transceivers that supports 10Gbps duplex link, QSFP Transceivers support up to 40Gbps links with a little larger size than the SFP and SFP+. C FORM-FACTOR PLUGGABLE (CFP) TRANSCEIVERTo meet the ever-growing demand for higher speed communications, engineers started working on developing a Transceiver that could support 100Gbps and higher bandwidths. In 2009, CFP MSA came out with a new standardized Transceiver called CFP which could support 100Gbps traffic. A CFP module has the dimensions of 144.8mm x 82mm x 13.6mm (LxWxH). 

A CFP Transceiver supports up to 10km link length on single-mode optical fiber cables and up to 150m on laser optimized multi-mode optical fiber cables. Variants of CFP Transceivers have also been developed as standards, CFP2 supports up to 100Gbps with a smaller form-factor and CFP4 supports up to 100Gbps with form-factor similar to QSFP Transceivers. CONCLUSIONIn light of the above mentioned details about the advancement and development of the fiber optic Transceivers, it is imperative that the trend of faster communication speeds and smaller form-factors will continue in future. Today, every other person has a smart-phone, a tablet PC, a laptop and a desktop computer which all connect to some kind of network, even the wrist watches and televisions connect to internet these days. This enormous growth in the internet’s traffic has produced the need for this development which we are seeing today in fiber optic networks. It is in near future that the current technology we have might not be enough to support the demands of the next generation smart devices, so the development and research is continuing at an even faster pace to cope up with the advancement in technology.