Active optical cable including a power management function

摘要

An optical transmission device (30) is provided. The optical transmission device (30) is coupled between a first electronic device (10) and a second electronic device (20), and includes a first optical transceiver module (31) coupled to the first electronic device (10); a second optical transceiver module (32) coupled to the second electronic device (20); and first and second optical fibers (331, 332) coupled between the first optical transceiver module (31) and the second optical transceiver module (32), wherein the second optical transceiver module (32) transmits an optical signal to the first optical transceiver module (31) periodically when the second electronic device (32) is idle for a first predetermined period.