Distributed Bragg reflectors and devices incorporating same

Details Distributed Bragg reflectors and devices incorporating same Distributed Bragg reflectors and devices incorporating same

1990-09-28

1992-10-27

Hearn, Brian E.

Fishing, trapping, and vermin destroying

437130, 437133, 148DIG50, 148DIG95, H01L 2120

Patent

active

051589087

ABSTRACT:
Distributed Bragg Reflectors of high efficacy based on alternating layers of large difference in refractive index are fabricated by epitaxial growth followed by etchant removal and back-filling to produce a structure in which alternation is between layers of retained epitaxially grown material and layers of back-filled material. Such reflectors may serve simply as mirrors or may be incorporated in a variety of devices including lasers, LEDs, detectors, optical switches in which the DBRs serve e.g. for cavitation.

REFERENCES:
patent: 3983509 (1976-09-01), Scifres
patent: 4764246 (1988-08-01), Bridges et al.
patent: 4873696 (1989-10-01), Coldren et al.
U. Koren, et al. "InGaAsP/InP undercut mesa laser with planer polyimide passivation" Appl. Phys. Lett 42(5) pp. 403-405 (1983).

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