Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2008-02-22
2010-12-14
Rodriguez, Armando (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S043010, C372S045010
Reexamination Certificate
active
07852893
ABSTRACT:
A semiconductor laser device includes: a substrate of a first conductivity type; a laminated body of a nitride semiconductor provided on the substrate and including at least an active layer and a cladding layer, the cladding layer being of a second conductivity type and having a ridge-shaped waveguide; a first film provided on one end surface of an optical resonator composed of the laminated body, the first film having a reflectance of 40% or more and 60% or less; and a second film provided on the other end surface of the optical resonator and having a higher reflectance than the first film. The optical resonator has a length of 400 μm or less. The one end surface serves as a light emitting surface.
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Matsuyama Takayuki
Okada Makoto
Tanaka Akira
Kabushiki Kaisha Toshiba
Nguyen Phillip
Rodriguez Armando
Turocy & Watson LLP
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