Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2006-01-03
2006-01-03
Harvey, MinSun Oh (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S045013
Reexamination Certificate
active
06983004
ABSTRACT:
A laser diode includes a substrate having a lattice constant of GaAs or between GaAs and GaP, a first cladding layer of AlGaInP formed on the substrate, an active layer of GaInAsP formed on the first cladding layer, an etching stopper layer of GaInP formed on the active layer, a pair of current-blocking regions of AlGaInP formed on the etching stopper layer so as to define a strip region therebetween, an optical waveguide layer of AlGaInP formed on the pair of current-blocking regions so as to cover the etching stopper layer in the stripe region, and a second cladding layer of AlGaInP formed on the optical waveguide layer, wherein the current-blocking regions having an Al content substantially identical with an Al content of the second cladding layer.
REFERENCES:
patent: 4288757 (1981-09-01), Kajimura
patent: 4866488 (1989-09-01), Frensley
patent: 5386429 (1995-01-01), Naito
patent: 5602866 (1997-02-01), Fukunaga
patent: 6072196 (2000-06-01), Sato
patent: 6118800 (2000-09-01), Kidoguchi
patent: 6207973 (2001-03-01), Sato et al.
patent: 6542528 (2003-04-01), Sato et al.
patent: 6563851 (2003-05-01), Jinuthani et al.
patent: 36-128-0687 (1986-12-01), None
patent: 40-515-7919 (1993-06-01), None
Jikutani Naoto
Sato Shun'ichi
Takahashi Takashi
Dickstein , Shapiro, Morin & Oshinsky, LLP
Harvey MinSun Oh
Nguyen Tuan N.
Ricoh & Company, Ltd.
LandOfFree
Laser diode and semiconductor light-emitting device... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser diode and semiconductor light-emitting device..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser diode and semiconductor light-emitting device... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3585087