Surface emitting laser

Details Surface emitting laser Surface emitting laser

2011-01-25

2011-01-25

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S043010, C372S044010, C372S050120

Reexamination Certificate

active

07876800

ABSTRACT:
A surface emitting laser having a photonic crystal layer130on a substrate105with an active layer therebetween, in which the photonic crystal layer includes at least a first periodic structure for resonating in an in-plane direction and a second periodic structure for modulating a light intensity distribution in an in-plane direction. The light intensity in the photonic crystal layer is periodically distributed to a region having high light intensity and a region having low light intensity by the second periodic structure. Further, a conductive film170for performing current injection into the active layer is selectively provided just above the region having low light intensity. The surface emitting laser provides suppression of light absorption and highly efficient current injection into an active layer to attain a high power.

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patent: 2003-273453 (2003-09-01), None
Shimada, et al., “Strong Localization of Bloch Photons in Dual-Periodic Dielectric Multilayer Structures”, J. Appl. Phys., vol. 90, No. 8, 3905-3909 (2001).

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