Patent ID: 9640950
Date: 2017-05-02
CPC Classifications: H01S,H04B

Claim:
1. An optical apparatus, comprising: an amplifier unit includes, a front coupling unit fixed to the front wall of the housing of the amplifier unit, the front coupling unit pluggably receiving an external optical fiber; a rear coupling unit; and an optical unit; and wherein the optical unit has a housing including a front wall, the rear coupling unit being fixed to the rear wall of the amplifier unit and to a front wall of the optical unit, the rear coupling unit passing the rear optical axis extending from the rear facet of the SOA to the optical unit, wherein the housing of the optical amplifier unit and the housing of the optical unit each provide flexible printed circuit (FPC) boards extending substantially in parallel to each other at a rear wall of the housing of the optical unit, wherein one of the FPC boards extends upward along a side wall of the housing of the amplifier unit that is perpendicular to the front wall and the rear wall of the housing of the amplifier unit, extends rearward along a lid of the amplifier unit that extends perpendicular to the front, rear, and side walls of the housing of the amplifier unit, and wherein another of the FPC boards extends rearward from the rear wall of the housing of the optical unit.