Semiconductor laser module having optical wavelength...

Details Semiconductor laser module having optical wavelength... Semiconductor laser module having optical wavelength...

2005-04-26

2005-04-26

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S021000, C372S043010

Reexamination Certificate

active

06885687

ABSTRACT:
A semiconductor laser module includes: a semiconductor laser element which emits laser light; a waveguide-type optical wavelength selection element which includes an optical waveguide, and selects a first portion of the laser light having a predetermined wavelength; and an optical wavelength conversion element which converts a second portion of the laser light having the predetermined wavelength to wavelength-converted laser light having a converted wavelength. The semiconductor laser element, the waveguide-type optical wavelength selection element, and the optical wavelength conversion element are coupled. The semiconductor laser element contains a multiple-quantum-well active layer including a plurality of quantum-well sublayers, where one of the plurality of quantum-well sublayers is different from another of the plurality of quantum-well sublayers in thickness and/or composition.

REFERENCES:
patent: 5790578 (1998-08-01), Takano
patent: 10-254001 (1998-09-01), None
patent: 10254001 (1998-09-01), None
Abstract 10-254001, Sep. 25, 1998.

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