Optical device and optical module

Details Optical device and optical module Optical device and optical module

2006-05-01

2008-01-29

Kim, Ellen E. (Department: 2874)

Optical waveguides

Integrated optical circuit

Reexamination Certificate

active

07324718

ABSTRACT:
A PD array is used in an optical module for monitoring signal light. In the optical module, when monitoring is conducted, signal light that passes through an optical fiber array is branched by a branching section disposed in the optical fiber array, wherein branched light from the branching section is detected by a photodetector region. The PD array is mounted on the optical fiber array. On the back of the base of the PD array, a coating film for preventing degradation in characteristics is formed, wherein the coating film includes an anti-reflective multilayer film.

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