Coherent light generators – Particular pumping means – Electrical
Reexamination Certificate
2011-02-01
2011-02-01
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular pumping means
Electrical
C372S044010
Reexamination Certificate
active
07881359
ABSTRACT:
A surface-emitting semiconductor laser device includes a semi-insulating substrate, a layer structure with a bottom multilayer reflector, an n-type cladding layer, an active layer structure for emitting laser, a p-type cladding layer and a top multilayer reflector with a dielectric material, consecutively formed on the semi-insulating substrate, the active layer structure, the p-type cladding layer and the top multilayer reflector, configuring a mesa post formed on a portion of the n-type cladding layer, the p-type cladding layer or the p-type multilayer reflector. The surface-emitting semiconductor laser includes a p-side electrode formed on another portion of the p-type cladding layer, and an n-side electrode formed on another portion of the n-type cladding layer. The n-side electrode includes a substantially uniform Au film and AuGeNi film or AuGe film consecutively formed on the n-type cladding layer, and an alloy is formed between said Au film and said AuGeNi film or AuGe film.
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Iwai Norihiro
Yokouchi Noriyuki
Hagan Sean
Harvey Minsun
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
The Furukawa Electric Co. Ltd
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