Visible light emitting vertical cavity surface emitting laser wi

Details Visible light emitting vertical cavity surface emitting laser wi Visible light emitting vertical cavity surface emitting laser wi

1996-12-27

1999-07-13

Bovernick, Rodney

Coherent light generators

Particular resonant cavity

Distributed feedback

372 50, H01S 319

Patent

active

059236965

ABSTRACT:
A stack of distributed Bragg reflectors is disposed on the surface of a semiconductor substrate. The stack includes a plurality of alternating layers of material having alternating refractive indexes with the stack having a first dopant type. A first cladding region is disposed on the stack with an active area disposed on the first cladding region. The active area includes at least two barrier layers and a quantum well layer. A second cladding region is disposed on the active area with a stack of distributed Bragg reflectors disposed on the cladding region. A contact region is disposed on the second stack of distributed Bragg reflectors. The contact region includes a magnesium doped gallium phosphide material.

REFERENCES:
patent: 5351256 (1994-09-01), Schneider et al.
patent: 5363390 (1994-11-01), Yang et al.
patent: 5530715 (1996-06-01), Shieh et al.
patent: 5621748 (1997-04-01), Kondo et al.
patent: 5661075 (1997-08-01), Grodzinski et al.
patent: 5679964 (1997-10-01), Kobayashi et al.

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