RECEIVER OPTICAL MODULE FOR RECEIVING WAVELENGTH MULTIPLEXED OPTICAL SIGNALS

摘要

A receiver optical module to facilitate the assembling is disclosed. The receiver optical module includes an intermediate assembly including the optical de-multiplexer and the optical reflector each mounted on the upper base, and the lens and the PD mounted on the sub-mount. The latter assembly is mounted on the bottom of the housing; while, the former assembly is also mounted on the bottom through the lower base. The upper base is apart from the bottom and extends in parallel to the bottom to form a surplus space where the amplifying circuit is mounted.

主权项

1. An optical module for receiving optical signals each having a specific wavelength different from others, comprising:
an intermediate assembly including an optical de-multiplexer, an optical reflector, and a base, the optical de-multiplexer de-multiplexing optical signals depending on the specific wavelengths, the optical reflector reflecting the de-multiplexed optical signals toward respective photodiodes, the base mounting the optical de-multiplexer and the optical reflector thereon; a plurality of lenses to concentrate the de-multiplexed optical signals reflected by the optical reflector; a plurality of photodiodes receiving the optical signals concentrated by the lenses, respectively; and a housing including a bottom, a side, and a lid to form a space into which the intermediate assembly, the lenses, and photodiodes are enclosed, wherein the photodiodes, the lenses and the optical reflector are arranged vertically with respect to the bottom of the housing.