Vertical cavity surface emitting laser optimized for optical...

Details Vertical cavity surface emitting laser optimized for optical... Vertical cavity surface emitting laser optimized for optical...

2005-04-29

2010-06-22

Harvey, Minsun (Department: 2828)

Coherent light generators

Particular active media

Semiconductor

C372S050210, C372S050110, C345S156000

Reexamination Certificate

active

07742515

ABSTRACT:
A vertical cavity surface emitting laser (VCSEL) optimized for use in self mixing applications. The VCSEL generally includes a bottom distributed Bragg reflector (DBR) mirror formed on a substrate. An active region is formed on the bottom mirror. A top DBR mirror is formed on the active region. A trench is formed in the at least the top mirror. An aperture is oxidized into the VCSEL. At least one of the bottom DBR mirror, the top DBR mirror, the metal contacts, the trench, and/or the aperture is optimized to make the VCSEL more optically sensitive to light reflected back into the VCSEL.

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