Patent Number: 6,298,079

Title: Gallium nitride type laser for emitting blue light

Abstract: In a semiconductor laser which uses a semiconductor of GaN type compound, an optimum material is used for a current blocking layer, so that it is made possible to obtain a semiconductor laser that satisfies a gain guiding structure of high light emitting efficiency or a refractive index guiding structure or both, thereby facilitating control of the noise of oscillated light (reduction of noise), control of the spread of light in lateral direction, and control of the longitudinal mode.

Inventors: Tanaka; Haruo (Kyoto, JP), Shakuda; Yukio (Kyoto, JP)

Assignee: Rohm Co., Ltd.

International Classification: H01S 5/323 (20060101); H01L 33/00 (20060101); H01S 5/00 (20060101); H01S 5/223 (20060101); H01S 5/22 (20060101); H01S 5/10 (20060101); H01S 005/00 ()

Expiration Date: 10/02/2018