Semiconductor laser diode and optical module

Details Semiconductor laser diode and optical module Semiconductor laser diode and optical module

2006-01-10

2006-01-10

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S043010

Reexamination Certificate

active

06985505

ABSTRACT:
The present invention provides a highly reliable ridge-waveguide semiconductor laser diode and an optical module. The p-side electrode of the ridge-waveguide laser diode has a first conductor layer region and a second conductor layer region formed on the first conductor layer region. At least one of facets of the second conductor layer region is recessed inward from a reflection facet. Thus, the ridge-waveguide semiconductor laser diode has a structure in which strain which is caused by the electrode stress to be applied on the diode facet is reduced and the saturable absorption does not occur. The ridge-waveguide semiconductor laser diode thus obtained is highly reliable, and the optical module using the same is remarkably high in reliability.

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