Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2007-07-20
2009-10-13
Fahmy, Wael (Department: 2814)
Coherent light generators
Particular active media
Semiconductor
C372S050121, C438S035000, C438S039000, C438S042000, C438S046000, C438S047000
Reexamination Certificate
active
07602830
ABSTRACT:
A monolithic semiconductor laser having plural semiconductor lasers having different emission wavelengths from each other, including: a semiconductor substrate; a first double hetero-structure formed within a first area on the semiconductor substrate and having first clad layers disposed above and below a first active layer; and a second double hetero-structure formed within a second area on the semiconductor substrate and having second clad layers disposed above and below a second active layer. The first and second active layers are made of different semiconductor materials from each other. The first clad layers above and below the first active layer are of approximately the same semiconductor materials and the second clad layers above and below the second active layer are of approximately the same semiconductor materials.
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Miyashita Motoharu
Nishida Takehiro
Yamaguchi Tsutomu
Fahmy Wael
McDermott Will & Emery LLP
Mitsubishi Denki & Kabushiki Kaisha
Sayadian Hrayr A
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