Coherent Optical Module Technology and Standards Trends
With the increase of single channel transmission rate, more and more application scenarios in the field of modern optical communication have started to use coherent optical transmission technology, which has changed from the backbone network(>1000km) to metro area (100~1000km) and even edge access network (<100km). On the other hand, in the field of data communication, coherent technology has also become the mainstream solution for data center interconnection (DCI) (80~120km). These new applications also put forward new requirements for coherent optical transceiver systems, driving the evolution of coherent transceiver units from the original integration with line cards and MSA transceivers to independent, standardized pluggable optical transceivers. Development of Pluggable Coherent Optical Transceivers Compared to client optical transceivers used inside metro networks or data centers, coherent optical transceivers used in optical transport networks are usually built in or ...