Lafite's Blog

The backbone optical communication networks are an essential infrastructure supporting the networked society. They are used for the internet phone and video demand services and for business activities and public services and offices in order to provide more stress–free communication and better services. Here introduce 100G technology a 100 gigabit per second digital coherent optical receiver which can be used to transmit 10 terabits per second of data over a single fiber. What Is Digital Coherent Transmission Technology? Let's outline the history of the technical development that allows us to send a large capacity of information over an optical fiber before explaining this. Time–Division Multiplexing The first development was the use of time–division multiplexing. This made it possible for a single fiber to carry data at 10 gigabits per second. Wavelength–Division Multiplexing The next–generation was to adopt wavelength–division multiplexing by using 40 wavelengths each...

SFP stands for Small Form-Factor Pluggable. It is a compact, hot-pluggable transceiver used for both telecom and datacom applications. SFP module has two ports, one port has laser inside, which is the transmitter side. The other port has a photodetector inside, which is the receiver side. So basically, SFP is a transceiver module, since it has transmitter and receiver in a single unit. Which Components Make Up the SFP Optical Module? The SFP optical module is composed of laser, circuit board IC and external accessories. The external accessories include shell, unlocking part, buckle, base, gripper, rubber plug, PCBA, and the color of gripper can help you to identify the parameter type of the module. For the types of SFP module, there are many types for SFP module such as BIDI-SFP, Electrical interface SFP, CWDM SFP, DWDM SFP, SFP+ transceivers and so on. In addition, for the same type of XFP, X2, XENPAK optical transceivers, SFP optical transceivers can not only be directly co...

Some network operators choose 200G instead of 400G to address rapid datacenter traffic growth. For example, according to LightCounting reports that Facebook will deploy 200GbE before 400GbE, while Google already has begun 2x200GbE optical transceiver . 200G optical transceiver is expected to find acceptance in parts of the cloud and enterprise data center networking space at the same time frame as 400G. As we all know, there are just a few suppliers to provide 200G optical transceiver, so it is vital to choose the right supplier for network operators. Since most companies are unaware of how to choose the right supplier so that they missed the chance to cooperate with the right partner. Here are some ways that will help you verify their effectiveness for your needs. Google Search  Engine You can affirm the credibility of the optical transceiver supplier by checking the information of 200G optical transceivers. Simply input words such as “200G optical tran...

The 5G standardization process is complex and highly innovative. 5G standards are developed in the 3rd Generation Partnership Project (3GPP), ITU Radiocommunication Sector (ITU-R), ITU Telecommunication Standardization Sector (ITU- T), the Internet Engineering Task Force (IETF) and IEEE. Here we focus on activities within 3GPP. 1.3GPP 5G will expand the LTE platform for new services while improving its efficiency to meet the mobile broadband demand. 2.3GPP 5G is not only a new radio (NR) interface but a full system, integrating LTE and NR radio access technologies with a 5G Core Network 3. Initially, some of the use cases will be fulfilled by LTE, but the aim is to eventually fulfill all the requirements with NR 4. From Release 15 onwards, the 3GPP specifications (LTE, NR and Core Network) will be marked “5G” 5.5G expands offerings by specializing radio and network capabilities (vertical sectors): – Enhanced Mobile Broadband – Massive Internet of Things – Ultra-Re...

With the increasing demand for high bandwidth from private cloud, public cloud data center and service providers, 25G and 100G are widely used. 200G and 400G optical devices will be successively produced and shipped from 2019. So far, most server vendors have started offering servers 25G of fiber-optic network CARDS as an I/O(input/output) option, and Ethernet's signal transmission rate has increased from the earlier 10G to 25G, 100G or higher. While 1G, 10G and 40G currently dominate the Ethernet port market, the future demand for 25G and 100G is stronger than ever as high bandwidth is undeniably driving data centers toward greater scalability and flexibility. Why Is 25G Coming to Data Centers? Data centers are expanding at an unprecedented rate, driving the need for higher bandwidth connections between servers and switches. To accommodate this trend, the access network has been upgraded from 10G to 25G, providing high-density, low-cost, and low-power solutions for the conne...

The dramatically grew in demand for 100G CWDM over the past year. While 100G continues to ramp, the promise of high volume 400G remains omnipresent, albeit a 2019 phenomenon. Customers need existing technologies that ship in production volumes to fill this industry gap. While 100G CWDM is a mature and well-understood technology and will continue to ramp in the coming year, many of the big Cloud Data Center OEMs are turning their sights to 200G, to meet the pressures of enabling faster connections at scale volumes. 200G optical transceivers with their many advantages such as significantly lower latency, power consumption and cost are coming to market now, and are seen by many as a viable, volume-scalable stepping-stone to 400G. The three hot selling 200G optical transceivers for the data center will be introduced in this article. No. 1 200G QSFP-DD SR8 NRZ QSFP-DD ports are backwards compatible with QSFP28 which is very important to provide a smooth upgrade path and link...