| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical transmitter-receiver and the like capable of transmitting an optimum optical signal in the transmitter side. <P>SOLUTION: An optical transmitter-receiver 1 having an optical transmitter 3 transmitting an optical signal and an optical receiver 4 receiving the optical signal comprises an optical path switching part 2 switching an optical path of the optical signal transmitted by the optical transmitter 3 between a first optical path in an optical communication period in which optical communication with another optical transmitter-receiver is performed, and a second optical path in a monitoring period in which the optical receiver 4 receives and monitors the optical signal. The optical path switching part 2 comprises: at least two mirrors 2a and 2b which reflect the optical signal transmitted by the optical transmitter 3 to guide it to the optical receiver 4, in the monitoring period; a frame 2c holding the at least two mirrors 2a and 2b; and a drive mechanism 2d driving the frame 2c to switch between the first optical path and the second optical path depending on whether the at least two mirrors 2a and 2b are positioned on the optical path of the optical signal transmitted by the optical transmitter 3 or not. <P>COPYRIGHT: (C)2012,JPO&INPIT |
