Mode control waveguide-type laser device

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United States of America Patent

PATENT NO 9197029
APP PUB NO 20130121355A1
SERIAL NO

13810750

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Abstract

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In a laser device, a control range of focal distance of a generated thermal lens is broadened and reliability is improved. A mode control waveguide-type laser device includes: a planar laser medium having a waveguide structure in a thickness direction of a cross section perpendicular to an optical axis, for generating gain with respect to laser light; a cladding bonded onto the laser medium; and a heat sink bonded onto the laser medium. The laser medium generates a lens effect, and the laser light oscillates in a waveguide mode in the thickness direction, and oscillates in a spatial mode due to the lens effect in a direction perpendicular to the optical axis and the thickness direction. The refractive index distribution within the laser medium is created by generating a temperature distribution in the laser medium depending on a junction area of the cladding and the heat sink.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATIONCHIYODA-KU TOKYO 100-8310

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirano, Yoshihito Tokyo, JP 75 845
Miyamoto, Noriyuki Tokyo, JP 15 55
Yamamoto, Shuhei Tokyo, JP 213 896
Yanagisawa, Takayuki Tokyo, JP 71 272

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