Self-Coherent Detection is a technique used in radar systems where the transmitted signal is used as a reference for coherent detection, eliminating the need for an external reference signal.


Distributed Acoustic Sensing for Datacenter Optical Interconnects using Self-Homodyne Coherent Detection

We demonstrate distributed acoustic sensing (DAS) over a bidirectional datacenter link which uses self-homodyne coherent detection for the data signal. Frequency multiplexing allows sharing the optoelectronic hardware, and enables DAS as an auxiliary function.