Vertical cavity surface emitting laser with low band gap highly

Details Vertical cavity surface emitting laser with low band gap highly Vertical cavity surface emitting laser with low band gap highly

1996-07-19

1998-10-06

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

H01S 319

Patent

active

058188614

ABSTRACT:
A contact structure for a vertical cavity surface emitting laser is described. The contact structure comprises a surface metal contact, a degeneratively doped layer of low bandgap material less than 200 .ANG. thick, and a plurality of current spreading layers. The contact structure provides a low ohmic path between the metal contact and the active region of the vertical cavity surface emitting laser.

REFERENCES:
patent: 5596595 (1997-01-01), Tan et al.
Cleo '96, Summaries of papers presented at the Conference on Lasers and Electro-Optics, Jun. 2-7, 1996, Anaheim, CA, vol. 9, 1996 Technical Digest Series, Conference Edition, p. 208.

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