Vertical cavity surface emitting laser with lateral injection

Details Vertical cavity surface emitting laser with lateral injection Vertical cavity surface emitting laser with lateral injection

1991-09-09

1992-11-17

Epps, Georgia Y.

Coherent light generators

Particular active media

Semiconductor

372 46, 372 96, H01S 319

Patent

active

051649497

ABSTRACT:
A planar semiconductor laser having low thermal and series resistance is fabricated. The semiconductor laser has an optical waveguide and a lateral current injection path provided by a conductive region. The conductive region disorders the active region and the first 1/4 wave stack of the laser, which reduces the reflectivity, therefore allowing control of the optical waveguide independent of the current flow. By forming the conductive region, the laser of the present invention can have stable optical characteristics and a bigger emission spot due to the weak built-in waveguide, thus resulting in the formation of a device having high output and a low thermal and series resistance.

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