How many light tranceivers are used in the data center?

2019-09-11
As a key element in the data center, the light module is very bright and lasts longer. The 40G connection to 100G solution is a trend when 100G + standards must be urgent. New optical modules are necessary for everyone.

We believe that there will be more new or new connector optical module solutions in the future. In addition, optical modules will be more and more suitable for data centers in the future. The next generation of 40G and 100G will be the 4X series, such as 200G / 400G data centers. Optical modules also need to grow to over 100G to meet these requirements. One of the most important values for measuring data center switches is the front panel bandwidth. In other words, all optical modules need to accommodate the convergence bandwidth of 19 "wide, 1RU switching devices. Most large data centers today typically use a 10G access port to access a 40g switched network. However, 25g access ports and 100G switching networks are expected to grow rapidly in the coming years. In data center, shape specification is an important factor to decide the application of optical module. SFP+ optical modules are widely used in 10G access ports for reasons of high performance and cost savings. But the SFP + will soon be, because when access speeds increase to 25g, 10G, the access ports will transition to sfp28.QSFP28 transceivers are the new trend in 100G applications.

Data center flattening is mainly to solve the internal (east-west) data flow in the data center, which is mainly driven by cloud computing, cloud migration, IaaS virtual configuration, distributed computing and big data (large data volume, storage and different servers) and other applications. Overseas markets such as AWS, Google and other cloud platforms, Sales force and other professional platforms, as well as the rapid development of distributed computing and big data applications, promote the flattening of data centers and generate strong demand for high-speed optical modules. In contrast, the domestic downstream application is still in the stage of market cultivation and business model exploration, and the domestic high-speed digital communication module market is expected to enter the explosive growth period after the downstream application enters the mature stage. As the core device of photoelectric conversion, optical module is widely used in data center. Under the scenario of over 10G rate and over 10m transmission distance, adopting optical module (or active optical fiber AOC which encapsulates multi-mode optical fiber and VCSEL optical module) is the only mature cabling scheme at present. Hd video, live broadcast, VR and other new applications drive the rapid growth of global network traffic, while emerging application demands such as cloud computing, IaaS services and big data put forward higher requirements for internal data transmission in the data center. Therefore, data centers not only need to continue to expand and build, but also need to continue to evolve in network architecture to achieve non-blocking network performance. Generally speaking, the gross profit margin of chip factories and equipment manufacturers is relatively high, while that of optical module enterprises is relatively low. The gross profit margin of domestic and foreign equipment manufacturers is generally more than 40%, and that of chip factories is generally more than 50%, while the gross profit margin of module manufacturers, component packaging and OEM factories is relatively low in the industrial chain. In the era of 4G network, optical modules benefit from the optical network upgrade of operators, the explosion of demand for cloud computing data center and the significant growth of demand for all-optical data center, especially the 10G optical module. In the future 5G network, 25G optical module and 100G optical module will lead the continuous growth of optical communication industry. Optical communication is a seasonal industry, and it will survive well only when the demand for communication grows, because the investment in communication systems is semi-permanent and operators can keep using them if the technology is not innovated. This time, the prosperity of the communication industry is driven by the explosive growth of mobile communication demand in the intelligent age and the growth of short distance and high-speed communication demand brought by cloud computing data center. It is conceivable that the 5G era, which will be put into commercial use around 2020, is the next growth point. How much demand there is for communications, and whether it is surplus, is anyone's guess. The demand for communications will not grow unlimitedly. Now that 100M broadband is commonplace, it is not clear whether there will be an indispensable application to consume communications capacity.

IEEE is the institute of electrical and electronics engineers, and 802.3 is a working group under IEEE, and many 10G, 40G, 100G, and 400G optical module standards are based on IEEE 8
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