MULTI-WAVELENGTH LIGHT-RECEIVER AND LIGHT TRANSMITTER-RECEIVER

摘要

PROBLEM TO BE SOLVED: To provide a multi-wavelength light-receiver being used for an optical communication and being capable of avoiding an electrical and optical interference between a part for a transmission and the part for a reception and a thermal interaction and a light transmitter-receiver using the multi-wavelength light-receiver.

SOLUTION: A first photo-diode 13a and a second photo-diode 15a receiving two light signals having different wavelengths and converting each of the light signals into electrical signals are fitted in a box body 10a. A triplexer 3 is composed of a light transmitter 5 having a laser diode 52 and outputting the optical signals and a multi-wavelength light-receiver 1a by using the multi-wavelength light-receiver 1a separately outputting the converted electrical signals. A fixing section 32 is fitted between the position of the multi-wavelength light-receiver 1a for the box body 31 for a light triplexer 3 and the position of the light transmitter 5, and the light triplexer 3 is fixed onto a circuit board inputting and outputting signals to and from the light triplexer 3 by the fixing section 32.

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