INTEGRATED OPTICAL COUPLER AND OPTICAL TRANSMITTER/ RECEIVER AND OPTICAL COMMUNICATION SYSTEM USING THE SAME

摘要

PURPOSE: To obtain the integrated optical coupler which facilitates processes, has superior reliability and reproducibility, and also facilitates control over its demultiplexing and multiplexing ratios and the devices using it. ;CONSTITUTION: Coupler parts 10a and 10b, and 11a and 11b which multiplex and demultiplex light waves are constituted in the intersections of plural channel waveguides 12-14 formed on a semiconductor substrate. The coupler parts are formed not symmetrically about the center line in the horizontal plane of crossing channel waveguide structures. Further, the coupler parts consist of machined parts which are at least two mirror surfaces having different reflection factors.;COPYRIGHT: (C)1993,JPO&Japio