Abstract: Present disclosure provides a self-homodyne coherent (SHC) system (100) for high-speed coherent optical interconnects, the SHC (100) comprises a first transceiver (101a) and a second transceiver (101b), each of the first transceiver (101a) and one second transceiver (101b) comprises adaptive polarization controller (401), a multi-core fiber link (103) connecting first transceiver (101a) to second transceiver (101b), the first transceiver (101a) is connected to first core for forward transmission of a first signal to the second transceiver (101b), and the first transceiver (101a) is connected to second core for backward transmission of a second signal from the second transceiver (101b), and adaptive polarization controller (401) of the first transceiver (101a) and the second transceiver (101b) is configured to control a coupled optical signal polarization associated with the first signal received at second transceiver (101b) and control a coupled optical signal polarization associated with second signal receiv