Surface emitting laser device and production method

Details Surface emitting laser device and production method Surface emitting laser device and production method

2005-10-12

2008-12-16

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S045010, C372S046010, C372S046013, C372S046015, C372S050121

Reexamination Certificate

active

07466738

ABSTRACT:
A surface emitting laser device is disclosed that is able to selectively add a sufficiently large loss to a high order transverse mode so as to efficiently suppress a high order transverse mode oscillation and to oscillate at high output in a single fundamental transverse mode. The surface emitting laser device includes a first resonance region that includes an active layer and spacer layers, two distributed Bragg reflectors that sandwich the resonance region, and a current confinement structure that defines a current injection region for the active layer. At least one of the distributed Bragg reflectors includes a second resonance region arranged in the current injection region excluding a predetermined region surrounding a center of the current injection region.

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