Temperature insensitive vertical cavity surface emitting laser

Details Temperature insensitive vertical cavity surface emitting laser Temperature insensitive vertical cavity surface emitting laser

1992-03-26

1993-12-28

Epps, Georgia Y.

Coherent light generators

Particular active media

Semiconductor

372 46, 372 96, H01S 319

Patent

active

052746550

ABSTRACT:
A vertical cavity surface emitting laser with temperature insensitive threshold current is constructed with a peak gain at a predetermined wavelength and with a Fabry-Perot resonance at a wavelength higher than the predetermined wavelength of the peak gain. As operating temperatures rise the peak gain is reduced but the Fabry-Perot mode moves closer to the peak gain to maintain the current substantially constant.

REFERENCES:
patent: 4943970 (1990-07-01), Bradley
patent: 4949350 (1990-08-01), Jewell et al.
patent: 5034958 (1991-07-01), Kwon et al.
patent: 5115442 (1992-05-01), Lee et al.

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