What is the difference between an XFP transceiver and an optical transceiver?

by http://www.fiber-mart.com

What is an XFP transceiver?
XFP transceiver (photoelectric converter) is only used for photoelectric signal conversion, and protocol converter used to convert a protocol to another XFP transceiver is a physical layer device, is the fiber optic broadband into twisted pair device , There are 10/100 / 1000M conversion. Protocol converter there are many, most of which is basically a two-tier equipment, often encountered a RAD protocol converter is 2M E1 line into V.35 data lines connected to the router equipment, of course, 2M turn Twisted pair Ethernet, with 2M communication lines can be achieved within the scope of remote access and expansion. These two kinds of equipment on its maintenance is not much, as long as not burned generally not bad.
What is the Optical transceiver?
Optical transmitters and off receivers, optical transmitters are receiving electrical signals that are converted into optical signals transmitted in fiber access, while optical receivers. Network video server is to accept the analog audio and video signals, can be a direct signal from the camera and monitor head, after digital compression coding, popular MPEG-4, the network transmission of special equipment, video servers are generally equipped with Ethernet RJ- 45 interface and fiber FC interface, but also with SCSi interface external hard drive for front-end storage, he is commonly used in remote network monitoring system, the most equipment. Digital optical function is to transfer the image, voice and data signals to be digitized, and then these digital signals are multiplexed, the multi-channel low-speed digital signal into a high-speed signal, and this signal is converted to light signal. The optical signal is reduced to the electrical signal at the receiving end, the restored high-speed signal decomposes the original multi-channel low-speed signal, and finally the data signal is reduced to the image, the voice and the data signal.
The difference between XFP transceivers and optical transceivers
XFP transceiver and optical transceiver are the same place to be photoelectric conversion; and they are different is that the XFP transceiver is mainly transmission network, only photoelectric conversion, does not change the code, not the data for other processing, the transceiver is for Ethernet For example, run 802.3 protocol, only for point-to-point connection. In addition to the photoelectric conversion work, but also on the data signal reuse and demultiplexing, a core transmission video, 485/422 / audio / light volume / network, etc., usually out of the multi-E1 line. XFP transceiver applications such as banking, education and other networking. The SDH, PDH optical transceiver is mainly used for telecom operators, to provide many pairs of point to the point of the data circuit; Video Optical is mainly used for security monitoring, distance education, video conferencing and other video transmission requirements of relatively high real- Can transmit control, switch, voice, Ethernet and other signals to meet the needs of multi-service applications, so we sometimes call it Integrated Optical.

Optical transceiver VS media converter

In the optical communications field, many devices have similar functions, such as optical transceivers and media converter, they are the equipment for photoelectric conversion. Do you know their differences?Let’s learn about this.
What is media converter?
Optical media converter is a medium for converting short distance electrical signals and long distance optical signals. It is also called photoelectric converter in many places and is generally used in long distance transmission. Optical transceiver is a cost-effective solution, it does not require a lot of manpower, material resources and time to complete the network upgrade.
The optical module consists of optoelectronic devices, functional circuits and optical interfaces, optoelectronic devices include transmitting and receiving. Simply speaking, the function of an optical module is photoelectric conversion. The transmitter converts an electrical signal into an optical signal and the receiving end converts the optical signal into an electrical signal after transmitting through an optical fiber. The principle is the same as the media converter, but it is more efficient and safer than the media converter.
According to the definition of optical module, as long as there is optical signal, there will be the application of optical module.
How can the optical module be used in conjunction with the media converter?
The wavelength and transmission distance must be the same, for example, using 1310nm wavelength, the transmission distance should be 10KM/20KM.
Optical fiber pigtail interface selection should be paid attention, used in generally media converter uses SC port, optical module uses LC port.
The data rate must be the same, Gigabit media converter corresponding to 1.25G optical module, megabit connect megabit, gigabit connect gigabit.
The optical module types must be the same.

Rapid Progression for Global 100G Optical Transceivers 2017-2021

by http://www.fiber-mart.com

In recent years, with the growing demand for reliable and high-speed mobile communication, optical transceivers are progressively being used for the communication network setup. In addition, the rising deployment of 100G transceivers forhigh-speed networks is one of the prime factors contributing to high demand for optical transceivers. As per a recent researchstudy titled “Global 100G Optical Transceivers Market,” owing to some various prime factors, the global market is anticipatedto grow at a strong rate by the end of 2021. This latest study has been lately broadcasted to the wide database of Market Research Hub (MRH), which offers athorough analysis of the global market, together with analysis of market size by value, volume, growth, segments etc.
For Ethernet systems, optical transceivers serve a necessary role in conveying information across communication channels andbecame a preferred choice because they offer higher bandwidth over long distance; and most importantly provides data security.
An optical transceiver completes the operation of transmission by converting the electrical signal in light pulse and vice versa at the receiving end through the use of optical fibers.
In the initial section, the report introduces the overview of 100G optical transceivers and analyzes the market by value anddifferent segments. Nowadays, the optical transceivers are available at different rates such as 10G, 40G and 100G. As standards transform, so does the technology that utilizes these standards, creating for faster, smaller transceivers for networks to utilize
in sending information. Among these, optical transceivers operating on 100G offer the most effective data transmission.
Moreover, the global market can be segmented on the basis of form factor, technical application and network reach.On the basis of technical application, it has been categorized into data communication and telecommunication. On the basis of end-use, it covers Long haul, Metro, Inter-data center.
At present market, the 100G optical transceiver module on the basis of form factor include CXP, CFP, XFP, SFF, SFP and QSFP. Among them, QSFP demonstrates its great superiority and will lead to denser optics and further price reductions.
Moving further, competitive landscape section is represented. In this section, different companies in the global 100G optical transceivers market have been compared according to their revenue and market capitalization. Additionally, the report also provides business overview, financial overview and the business strategies of the companies.

The trend of optical transceiver of 2020

by http://www.fiber-mart.com

With the development of China’s 5G network and the improvement of China’s domestic optical module manufacturers’ research and development capabilities and production capacity.This trend greatly increases the cost advantage of Chinese optical module products, making China the optical modules significantly enhance the competitiveness of enterprises.It also stimulated foreign communication equipment manufacturers to increase the procurement of optical module products in China.At the same time, foreign communication equipment manufacturers have gradually shifted their production and R&D bases to China in recent years due to factors such as labor.This behavior has driven the demand for China’s optical module market. So in this case, what is the trend of optical modules in 2020?
1. The construction of 5G network promotes the increasing demand for optical modules
5G network as a fifth generation mobile communication network, the theoretical peak speeds of up to tens of Gb per second, compared with the mainstream at this stage the highest transmission speed of 4G networks hundreds of times faster.In addition, the explosion of data traffic and accelerated deployment of 5G and Internet of Things will further drive the demand for high-speed optical modules, and the demand for optical modules as a core component is huge. All of this means that we need more optical module components to build the network infrastructure.
2. The rise of the data market drives the demand for high-speed optical modules.
At present, the platform using cloud technology will be mature enough, such as AI, video, online games, Internet of Things, mobile Internet and other technologies will continue to drive the demand for IDC infrastructure.Third-party IDC operators are expected to usher in a fast growth cycle. That means the rise of large data centers.And in the flow between very large data centers, the traditional operator demand can not meet this demand at 25T. This will take advantage of the 960T of the Internet enterprise. This data is about 40 times that of the former. It can maximize efficiency and handle the huge computing needs of enterprises.
Therefore, high-speed optical modules will become more and more popular, especially 40G and 100G optica transcievers, which will be widely used in the future.
3. The construction of the data center will bring explosive demand for optical modules and switches.
According to the data, the optical module market maintains a high growth rate, in which 100G optical modules contribute more than 60% of revenue.
Samples of 400G products have been exhibited, and QSFP-DD is expected to become a mainstream product. It is expected that there will be small-scale production in the world this year and large-scale application by 2022.

The Simple Guide of Optical Transceiver

The word we now often refer to optical module is transceiver. It is a compound of transmitter and receiver, which is a smart combine. Because it vividly expresses the key function of the device, transmitting and receiving signal. Therefore, a transceiver is basically a transmitter and receiver in a small package and serves as an important sub system in fiber optic communication networks.
Structure and Operational Principle
There are several key components in a common transceiver. It’s TOSA, ROSA, laser driver chip, limiting amplifier chip and PCB. This components usually hides in a small package with one or two fiber optic connector at one hand including a release latch and an electrical PCB edge connector at the other. The TOSA(Transmitter Optical Sub-assembly) consists of a laser diode, optical interface, monitor photodiode, metal housing, and electrical interface. The ROSA (Receiver Optical Sub-assembly) consists of a photodiode, optical interface, metal housing, and electrical interface.
Look at how a common transceiver works. First, the electrical signal imported through PCB (Printed Circuit Board) from a motherboard is converted into the optical signal with the help of a laser diode and laser driver chip, and through TOSA the optical signal couples into an optical fiber cable. Meanwhile, the optical signal received through optical interface is converted by ROSA into the electrical signal, then exports by limiting amplifier to the motherboard over the PCB edge connector.
Short Story of Development
It probably not be over 30 years after the first transceiver was invented, but this tiny device has experienced updating every few years, which has taken many experts’ heart and soul. Generally speaking, the pace of technology progress always faster than we can imagine. But as for transceiver, no matter how far and how deep it will go and develop, the tendency of transceiver’s evolution always focus on data speed enhancing, miniaturization, longer distance, compaction, cost-effectiveness, lower dissipation and hot-plugging. In the following chart of different generation of transceivers, you may find how transceiver develop and update over the years.
As an important sub system of communication network industry, transceivers can found where high speed computer network and high-bandwidth data communications need, such as base stations, servers, data centers and so on. Specifically, Ethernet switches, routers, firewalls and network interface cards, fiber converter are most application scenarios.
No matter old GBIC or the latest QSFP-DD, they are ‘standardized’ by multi-source agreements(MSA). It is an agreement between multiple manufacturers to make products which are compatible across vendors. This is a very important agreement for many transceiver market participator. Besides strictly defining the operating characteristic of transceivers that compliant vendor can make produce, most importantly, it establishes a competitive market for interoperable products, allowing third party vendor participating in the market. Thus, transceivers may be purchased from any of the multiple sources in the open market, just like 10Gtek.

How to clean the Optical Transceiver

by http://www.fiber-mart.com

We have always emphasized that proper fiber cleaning of connector end-face is very important to ensure the performance of the whole fiber systems. In fact, optical transceiver module is no exception as the contamination of the optical port of a transceiver will also lead to network failure. However, many people overlook the importance of optical transceiver cleaning or do not clean it in a proper way. This is why I want to talk this topic today.
When to Clean?
As we know, the connector end-face of fiber jumper is always recommended to clean before connection. But the optical port of the optical transceiver should not need frequent cleaning unless there is a problem because they have less risk of being contaminated compared to jumper. In general, if you have cleaned your connectors, but still experience low-power output from an optical transceiver or a fault signal from your equipment, you should clean the optical port of the transceiver.
How to Clean
The best way to clean the optical port of a transceiver is to use the air duster (also called clean dry air) to blow away small dust particles. In addition, lint-free stick/swab is also required for dry cleaning. The detailed cleaning procedure is shown as below:
Remove the dust cap from the optical transceiver.
Use an air duster to remove any dirt or particles.
Insert a lint-free stick of the appropriate size (2.5 mm or 1.25 mm) and turn clockwise. Dry cleaning is recommended here. Thus, Don’t use alcohol-based cleaning sticks.
Repeat steps 2 and 3 if necessary.
Remove the lint-free stick and reinsert the dust cap to the transceiver. Always keep the dust cap inserted in the transceiver when not in use.
Place the transceiver on a clean and static-free area, such as an antistatic mat.
Optical ports of transceivers also require proper cleaning to ensure the fiber transmission performance. It is recommended to clean the transceiver port when there is an error on port. Dry cleaning is recommended to use with air duster and lint-free. Moreover, cross contamination should be avoided by always using cleaned jumper.

Which SFP Fiber Cable Should I Choose for My Optical Transceiver?

by http://www.fiber-mart.com

SFP fiber cable and fiber optic transceiver have become more and more important in fiber optic data transmission, especially in data transmission between the switches and equipment. But with so many different kinds of SFP fiber cables available in the market, which one is suitable for may optical transceiers? This article may on this issue to provide some solutions. Before starting this topic, it is necessary for us to review the basic knowledge of the fiber optic transceiver and fiber optic cable.
Fiber Optic Transceiver Overview
Fiber Optic Transceiver is a self-contained component that can both transmit and receive. Usually, it is inserted in devices such as switches, routers or network interface cards which provide one or more transceiver module slot. There are many optical transceivers types, such as SFP+ transceiver, X2 transceiver, XENPAK transceiver, XFP transceiver, SFP (Mini GBIC) transceiver, GBIC transceiver and so on.
Fiber Optic Patch Cable Overview
Fiber optic patch cable, also known as fiber jumper or fiber optic patch cord. It is composed of a fiber optic cable terminated with different connectors on the ends. Fiber optic patch cables are used in two major application areas: computer work station to outlet and patch panels or optical cross connect distribution center. According to fiber cable mode, cable structure or connector types etc., fiber patch cable can be divided into different types.
1.Single-mode and Multimode SFP fiber Cable
According cable mode, patch cables can be divided into single-mode and multimode fiber patch cable. The word mode means the transmitting mode of the fiber optic light in the fiber optic cable core. Single-mode patch cables are with 9/125 fiber glass and are yellow jacket color, while multimode patch cables are with OM1 62.5/125 or OM2 50/125 fiber glass and are orange color. In addition, there is 10G OM3 and OM4 multimode patch cables which cable jacket are usually aqua.
2.Simplex and Duplex SFP fiber Cable
Simplex fiber patch cable is consist of single fiber core, while duplex fiber patch cable is consist of two fiber cores and can be either singlemode or multimode. Additionally, there is also ribbon fan-out cable assembly (ie. one end is ribbon fiber with multi fibers and one ribbon fiber connector such as MTP connector (12 fibers), the other end is multi simplex fiber cables with connectors such as ST, SC, LC, etc.).
3.LC, SC, ST, FC, MT-RJ, E2000, MU and MPO/MTP Patch Cable
Fiber optic patch cable can be also classified by the types of fiber optic connector. For example, LC fiber optic patch cable is named as it is with LC connector. Similarly, there are SC, ST, FC, MT-RJ, E2000, MU and MPO/MTP fiber optic patch cables. What’s more, there are PC, UPC, APC type fiber patch cords, which are differentiated from the polish of fiber connectors.
Which SFP fiber Cable Should I Choose for My Fiber Optic Transceivers?
Now, I will take the Cisco fiber optic transceiver as an example to discuss this topic. For example, we need to choose a right patch cable to connect Cisco fiber optic transceiver SFP-10G-SR and X2-10GB-SR. Which patch cable to use? According to “Cisco 10-Gigabit Ethernet Transceiver Modules Compatibility Matrix”, we may know that SFP-10G-SR is the 10GBASE-SR SFP+ transceiver module for MMF, 850-nm wavelength, LC duplex connector. And X2-10GB-SR is the 10GBASE-SR X2 transceiver module for MMF, 850-nm wavelength, SC duplex connector. Obviously, this two knids of optica trancseivers are both for MMF, so we should choose a multimode patch cable. Besides, we know X2-10GB-SR is designed for SC duplex connector and the SFP-10G-SR is designed for duplex LC connector, so we should use a patch cable with SC-LC duplex connector.