Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2009-07-27
2011-12-06
Nguyen, Khiem D (Department: 2823)
Coherent light generators
Particular active media
Semiconductor
C372S043010, C438S029000, C257SE21530
Reexamination Certificate
active
08073035
ABSTRACT:
A surface emitting laser configured by laminating on a substrate a lower reflection mirror, an active layer and an upper reflection mirror includes, in a light emitting section of the upper reflection mirror, a structure for controlling reflectance that is configured by a low reflectance region and a convex high reflectance region formed in the central portion of the low reflectance region, and which oscillates at a wavelength of λ, wherein the upper reflection mirror is configured by a multilayer film reflection mirror based on a laminated structure formed by laminating a plurality of layers, and an absorption layer causing band-to-band absorption is provided in the laminated structure.
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Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Nguyen Khiem D
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