Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2005-04-12
2005-04-12
Leung, Quyen (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
Reexamination Certificate
active
06879614
ABSTRACT:
A laser diode includes a substrate, a lower cladding layer or a lower optical waveguide layer substantially free from Al and provided on the substrate, an active layer of a mixed crystal containing Ga and In as a group III element and N, As and/or P as a group V element, provided on the lower cladding layer; and an upper cladding layer or an upper optical waveguide layer substantially free from Al and provided on the active layer.
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Leung Quyen
Ricoh & Company, Ltd.
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