Application of the Coherent Optical Communication

 Coherent Optical Communication， It is an advanced and complex optical transmission system suitable for longer distance, higher capacity information transmission. In the long-distance transmission of optical fibers, EDFAs (Erbium-Doped Fiber Amplifiers) are generally used for every 80km span.

With coherent optical communication, long-distance transmission is much easier. Moreover, coherent optical communication can be transformed directly with the existing optical fiber and cable, whose cost is controllable.

Coherent optical communication can be used to upgrade the existing backbone network WDM system, and can also be used in 5G mid-backhaul scenarios. Even metro FTTx fiber access has begun to study the introduction of coherent optical communication. At present, the most heated discussion of coherent optical communication focuses on the “data center interconnection”(DCI) scenario.

DCI has a strong demand for long-distance coherent optical modules. Especially this year, the country vigorously promotes channeling more computing resources from the eastern areas to the less developed western regions, which has a great stimulating effect on the coherent optical communication market.

Conclusion:
All in all, the return and popularization of coherent optical communication technology are conducive to further tapping the performance potential of optical communication, increasing the limit bandwidth, and reducing deployment costs. At present, the research on coherent optical communication technology is still in progress. The problems of a complex process, large volume, and high power consumption of coherent optical modules have not been completely solved. There is still a lot of room for technological innovation in each key link of coherent optical communication.

HTF can help you design coherent 400G/200G/100G DWDM/OTN solution, DWDM Single lamda 100G/200G/400G Dual fiber/Single fiber Ultra long distance transmission.