Bar-shaped semiconductor laser chip and method of...

Details Bar-shaped semiconductor laser chip and method of... Bar-shaped semiconductor laser chip and method of...

2009-10-05

2011-12-13

Stafford, Patrick (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S050120

Reexamination Certificate

active

08077751

ABSTRACT:
A bar-shaped semiconductor laser chip that can hold down a variation in oscillation wavelength is provided. The bar-shaped semiconductor laser chip has a nitride semiconductor substrate and a semiconductor layer formed on the main surface of the nitride semiconductor substrate and including a plurality of laser chip portions. The plurality of laser chip portions are arrayed in the [11-20] direction. The main surface of the nitride semiconductor substrate is a (0001) plane having an off-angle in the direction along the [11-20] direction. The central part of the main surface of the nitride semiconductor substrate has an off-angle of 0.05±0.1 degrees from the (0001) plane in the direction along the [11-20] direction.

REFERENCES:
patent: 2006/0094244 (2006-05-01), Yamada et al.
patent: 2008-205171 (2008-09-01), None

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