OPTICAL TRANSMITTER-RECEIVER

摘要

PROBLEM TO BE SOLVED: To obtain an optical transmitter-receiver that surely conducts optical communication by using an optical transmission medium between optical transmitter-receiver sets under an optimum condition. SOLUTION: A control means 2 in an optical transmitter-receiver 20 (21) that connects to an opposite optical transmitter-receiver 21 (20) via optical transmission media F1, F2 to communicate a data signal to the opposite optical transmitter-receiver 21 (20) adjusts a parameter of a light emission power control signal s2C so that the intensity of an optical signal 200 outputted from a light emitting element 4 increases when detection means 8, 9 detect dissidence and selection means 1, 17 set a parameter of a current light emission power control signal s2C as a parameter when the detection means detect coincidence.