Spatial absorptive and phase shift filter layer to reduce modal

Details Spatial absorptive and phase shift filter layer to reduce modal Spatial absorptive and phase shift filter layer to reduce modal

1998-10-29

2000-11-07

Arroyo, Teresa M.

Coherent light generators

Particular active media

Semiconductor

372 46, 372 96, H01S 500

Patent

active

061446823

ABSTRACT:
A first, thicker, annular gallium arsenide semiconductor layer surrounds a second, thinner, circular gallium arsenide semiconductor layer in a vertical cavity surface emitting laser. The thinner circular gallium arsenide layer defines the output window for the laser cavity which matches the TEM.sub.00 fundamental mode of the light beam emitted by the active region of the VCSEL. The thicker annular gallium arsenide layer outside the output window of the thinner circular gallium arsenide layer provides modal reflectivity discrimination against high order transverse modes of the light beam emitted by the active region of the VCSEL.

REFERENCES:
patent: 5115441 (1992-05-01), Kopf et al.
patent: 5805624 (1998-09-01), Yang et al.
patent: 5879961 (1999-03-01), Scott
patent: 5963576 (1999-10-01), Claisse et al.
patent: 6021146 (2000-02-01), Jiang et al.
Morgan et al., "Transverse Mode Control of Vertical-Cavity Top-Surface-Emitting Lasers", IEEE Photonics Technology Letters, vol. 4, No. 4, Apr. 1993, pp. 374-377.

Affiliated with

Also associated with

Rating

Spatial absorptive and phase shift filter layer to reduce modal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spatial absorptive and phase shift filter layer to reduce modal , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatial absorptive and phase shift filter layer to reduce modal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1648780