![]() This IA is useful in the case when the DSP exceeds the module power envelope. This IA supports a configuration where the digital signal processor (DSP) is on the main board and analog optical components are on the module. The Optical Internetworking Forum in 2016 published the CFP2-ACO or CFP2 - Analog Coherent Optics Module Interoperability Agreement (IA). There are multiple variants of the electrical interface of coherent optical modules use. Coherent optical modules form a smaller piece of a much larger optical module industry. Coherent optical modules can either plug into a front panel socket or an on-board socket. The technical details of coherent optical modules were proprietary for many years, but have recently attracted efforts by multi-source agreement (MSA) groups and a standards development organizations such as the Optical Internetworking Forum. Optical modules typically have an electrical interface on the side that connects to the inside of the system and an optical interface on the side that connects to the outside world through a fiber optic cable. ![]() Coherent optical module refers to a typically hot-pluggable coherent optical transceiver that uses coherent modulation ( BPSK/ QPSK/ QAM) rather than amplitude modulation (RZ/ NRZ/ PAM4) and is typically used in high-bandwidth data communications applications.
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