Patent ID: 9531476
Filing Date: 2016-12-27
CPC Classification: G02B,H04B

Claim Text:
1. An optical communication module circuit for outputting a multiplexed signal, the optical communication module comprising: a plurality of semiconductor lasers that emit optical signals with different wavelengths; a multiplexing optical system including a plurality of optical filters used for multiplexing the optical signals, each of which has been emitted from a corresponding one of the plurality of semiconductor lasers, and a substrate on which the optical filters are provided; and a plurality of lenses, each of the lenses being joined to a corresponding one of the plurality of optical filters to condense or collimate an optical signal emitted from a corresponding one of the semiconductor lasers to the optical filter and thereby enable the light signal to enter the optical filter, wherein the plurality of lenses are independent from one another and have a different linear expansion ratio from that of the substrate, and the plurality of lenses are not in contact with a supporting member on which the substrate is mounted.