Semiconductor laser apparatus and manufacturing method thereof

Details Semiconductor laser apparatus and manufacturing method thereof Semiconductor laser apparatus and manufacturing method thereof

2005-08-31

2010-10-19

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S036000, C372S043010

Reexamination Certificate

active

07817694

ABSTRACT:
A one-chip semiconductor laser device for use in a semiconductor laser apparatus has a structure in which a red semiconductor laser device and an infrared semiconductor laser device are stacked on a blue-violet semiconductor laser device. The blue-violet semiconductor laser device is manufactured by forming semiconductor layers on a GaN substrate. Each of the red semiconductor laser device and the infrared semiconductor laser device is manufactured by forming semiconductor layers on a GaAs substrate. The modulus of elasticity of GaAs is smaller than the modulus of elasticity of GaN. The length of each of the red semiconductor laser device and the infrared semiconductor laser device is longer than the length of the blue-violet semiconductor laser device.

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