Which two technologies are used in coherent optical communication technology?
A、Envelope detection technology;
B、Heterodyne detection technology;
C、Coherent modulation technology;
D、OFDM technology
发布时间:2026-01-21 08:35:21
A、Envelope detection technology;
B、Heterodyne detection technology;
C、Coherent modulation technology;
D、OFDM technology