Surface emitting laser having improved pumping efficiency

Details Surface emitting laser having improved pumping efficiency Surface emitting laser having improved pumping efficiency

1995-04-05

1996-04-30

Bovernick, Rodney B.

Coherent light generators

Particular resonant cavity

Distributed feedback

372 50, 372 70, H01S 3085, H01S 3094, H01S 318

Patent

active

055132030

ABSTRACT:
In accordance with the present invention, a surface emitting laser includes a substrate, a first distributed feedback mirror formed on the substrate, and an active gain medium formed on the first mirror. The active gain medium includes at least one active, optically emitting layer and one barrier layer. A second distributed feedback mirror is formed on the active gain medium. The first and second mirrors define a resonant cavity for supporting a standing wave optical field at a designed wavelength of operation The first and second mirrors have first and second reflective bandwidths that respectively include first and second transmissive bandwidths for receiving optical pumping energy. The first and second reflective bandwidths are shifted in wavelength relative to one another so that the first and second transmissive bandwidths are located at distinct wavelengths.

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