| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized optical receiver module that facilitates accommodation of a preamplifier circuit and installation of wiring while receiving a plurality of pieces of wavelength-multiplexed signal light having different wavelengths by a collectively integrated optical component.SOLUTION: A package section 12 accommodates: an optical demultiplexer 26 for demultiplexing wavelength-multiplexed signal light into a plurality of pieces of signal light having different wavelengths; a plurality of lenses 28 for individually condensing the plurality of pieces of demultiplexed signal light demultiplexed by the optical demultiplexer 26; and a plurality of light receiving elements 29 for individually light-receiving the demultiplexed signal light from the plurality of lenses 28. Further, a preamplifier circuit 32 for amplifying output signals from the plurality of light receiving elements 29 is disposed close to the light receiving elements 29. A wiring board 37 is disposed above the preamplifier circuit 32. At least one of electrical connections of the light receiving elements 29 or the preamplifier circuit 32 to a terminal portion is formed via the wiring board 37. |
