VCSEL with unstable resonator

Details VCSEL with unstable resonator VCSEL with unstable resonator

1993-09-21

1995-02-07

Davie, James W.

Coherent light generators

Particular resonant cavity

Specified cavity component

372 45, 372 92, 372 95, H01S 308

Patent

active

053881206

ABSTRACT:
A vertical cavity laser with unstable resonator including a substrate having opposed major surfaces with a first semiconductor mirror stack positioned on one major surface of the substrate, an active region positioned on the first stack and a second semiconductor mirror stack positioned on the active region so as to sandwich the active region between the first and second stacks. Layers of the second stack being etched so as to spatially modulate the thickness of the second stack such that reflectivity is reduced in a central portion of the second stack and increases toward an edge thereof.

REFERENCES:
patent: 5115441 (1992-05-01), Kopf et al.
patent: 5226053 (1993-07-01), Cho et al.

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