Vertical cavity surface emitting laser array with integrated pho

Details Vertical cavity surface emitting laser array with integrated pho Vertical cavity surface emitting laser array with integrated pho

1998-02-17

2000-02-08

Sanghavi, Hemang

Coherent light generators

Particular active media

Semiconductor

372 46, 372 96, H01S 319

Patent

active

060234857

ABSTRACT:
A vertical cavity surface emitting laser array with an integrated PIN photodiode. The PIN photodiode includes a first region of a first doped material, a second region of an undoped material and a third region composed of an n-doped stack of distributed Bragg reflectors. The vertical cavity surface emitting laser includes the n-type stack of distributed Bragg reflectors, an active, and a p-type stack of distributed Bragg reflectors so as to define an optical pathway through which light is generated and passes. The integrated device allows for automatic power control of each of the individual devices forming the array by sequentially scanning the individual devices and generating feedback signals.

REFERENCES:
patent: 5471701 (1995-12-01), Hibbs-Brenner
patent: 5574744 (1996-11-01), Gaw et al.
patent: 5757837 (1998-05-01), Lim et al.
patent: 5892786 (1999-04-01), Lott
patent: 5943357 (1999-08-01), Lebby et al.

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