Electrically pumped vertical cavity laser

Details Electrically pumped vertical cavity laser Electrically pumped vertical cavity laser

1989-04-26

1991-02-05

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

372 49, 372 92, 372108, H01S 319

Patent

active

049911791

ABSTRACT:
An electrically pumped vertical cavity laser depends upon reflection as between an unaided DBR reflector on one side of the cavity and a metal-supplemented DBR reflector on the other. Placement of the shorter supplemented DBR on the p-conductivity type side of the cavity reduces the resistance of the electrical series pump path. Permitted use of an active region of a thickness of 1 .mu.m or less in the lasing direction results in low lasing threshold. The structural approach is of significance for laser integration in integrated circuits, whether electro-optic or all-optic.

REFERENCES:
patent: 4581744 (1986-04-01), Takamiya et al.
patent: 4819243 (1989-04-01), Opschoor
patent: 4873696 (1989-10-01), Coldren et al.

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