Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2005-08-02
2005-08-02
Wong, Don (Department: 2821)
Coherent light generators
Particular active media
Semiconductor
C372S043010, C372S044010, C372S045013
Reexamination Certificate
active
06925101
ABSTRACT:
A semiconductor laser device comprises a laminate consisting of a semiconductor layer of first conductivity type, an active layer and a semiconductor layer of second conductivity type, which is different from the first conductivity type, that are stacked in order, with a waveguide region being formed to guide a light beam in a direction perpendicular to the direction of width by restricting the light from spreading in the direction of width in the active layer and in the proximity thereof, wherein the waveguide region has a first waveguide region and a second waveguide region, the first waveguide region is a region where light is confined within the limited active layer by means of a difference in the refractive index between the active layer and the regions on both sides of the active layer by limiting the width of the active layer, and the second waveguide region is a region where the light is confined therein by providing effective difference in refractive index in the active layer.
REFERENCES:
patent: 4674094 (1987-06-01), Murakami
patent: 5565693 (1996-10-01), Sasaki et al.
patent: 5687272 (1997-11-01), Vinchant et al.
patent: 5770466 (1998-06-01), Sasaki et al.
patent: 5946336 (1999-08-01), Mizutani et al.
patent: 6657237 (2003-12-01), Kwak et al.
patent: 6807201 (2004-10-01), Nitta
patent: 2004/0165635 (2004-08-01), Sugimoto et al.
patent: 0 729 042 (1996-08-01), None
patent: 52-153686 (1977-12-01), None
patent: 60-3177 (1985-01-01), None
patent: 60-003177 (1985-01-01), None
patent: 6-260727 (1994-09-01), None
patent: 7-174931 (1995-07-01), None
patent: 248248 (1996-09-01), None
patent: 8-248248 (1996-09-01), None
patent: 2000-4063 (2000-01-01), None
patent: 2000-31599 (2000-01-01), None
patent: 3031415 (2000-04-01), None
patent: 2000-114664 (2000-04-01), None
patent: 2000-353859 (2000-12-01), None
Al-Nazer Leith
Morrison & Foerster / LLP
Nichia Corporation
Wong Don
LandOfFree
Semiconductor laser device, and method of manufacturing the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor laser device, and method of manufacturing the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor laser device, and method of manufacturing the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3441102