Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2005-05-10
2005-05-10
Jackson, Jerome (Department: 2815)
Coherent light generators
Particular active media
Semiconductor
C372S045013, C372S043010, C372S044010
Reexamination Certificate
active
06891872
ABSTRACT:
A semiconductor laser device is characterized in that an angle θ of inclination formed by the side surfaces of a ridge portion and a lower part of the ridge portion is at least 70° and not more than 117°, a p-type cladding layer is made of AlX1Ga1-X1As, a first current blocking layer is made of AlX2Ga1-X2As, the distance between an emission layer and the first current blocking layer satisfies the relation of t≦0.275/(1−(X2−X1)) assuming that t represents the distance, and a lower width W of the ridge portion is at least 2 μm and not more than 5 μm.
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First Office Action with the English Translation issue by The Patent Office of The State Intellectual Property Office Of The People's Republic Of China dated Aug. 8, 2003.
Chinese Office Action dated Feb. 20, 2004.
Furusawa Koutarou
Hiroyama Ryouji
Nomura Yasuhiko
Okamoto Shigeyuki
Takeuchi Kunio
Armstrong Kratz Quintos Hanson & Brooks, LLP
Jackson Jerome
Landau Matthew C
Sanyo Electric Co,. Ltd.
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