Traveling wave semi-conductor laser

Details Traveling wave semi-conductor laser Traveling wave semi-conductor laser

1987-12-04

1990-05-08

Sikes, William L.

Coherent light generators

Particular resonant cavity

Folded cavity

372 50, 372 92, H01S 3083

Patent

active

049244760

ABSTRACT:
A triangular ring laser utilizing total internal reflection at two angled facets and a preselected amount of reflection at a third angled facet is disclosed. Partial transmission occurs through the third facet to reduce the threshold current required for achieving stimulated emission. The facets are at three corners of the triangular laser, and are formed by chemically assisted ion beam etching in which SiO.sub.2 is used as a mask, whereby smooth vertical walls are produced to form facets having reflective characteristics equivalent to those formed by cleaving.

REFERENCES:
patent: 3248671 (1962-11-01), Dill
patent: 3521192 (1967-08-01), De Maria et al.
patent: 3530397 (1970-09-01), Suzuki et al.
patent: 3538453 (1970-11-01), Miller
patent: 4097819 (1978-06-01), Bellavance
patent: 4578793 (1986-03-01), Kane et al.
patent: 4580269 (1986-04-01), Salour et al.

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