Semiconductor laser module and semiconductor laser device...

Details Semiconductor laser module and semiconductor laser device... Semiconductor laser module and semiconductor laser device...

2005-06-28

2005-06-28

Wong, Don (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S043010

Reexamination Certificate

active

06912237

ABSTRACT:
A semiconductor laser module is provided for emitting pumping laser light which excels in temporal stability. The semiconductor laser module comprises a semiconductor laser device which has a layered structure formed on a GaAs substrate, wherein the layered structure has an active layer in a quantum well structure, formed of semiconductor materials including Ga and As, and a member having a light feedback function. The two components are optically coupled. A well layer in the active layer of the semiconductor laser device is a thick layer having a thickness of 10 nm or more. The active layer is doped with Si, and an n-type cladding layer underlying the active layer is also doped with Si.

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