VCSEL with separate control of current distribution and optical

Details VCSEL with separate control of current distribution and optical VCSEL with separate control of current distribution and optical

1992-08-06

1994-05-31

Epps, Georgia Y.

Coherent light generators

Particular active media

Semiconductor

372 96, 372 99, 437129, H01S 319

Patent

active

053175875

ABSTRACT:
A VCSEL formed on a substrate with an upper mirror stack etched to form a mesa shaped area with material positioned on the upper mirror stack including optically transparent, electrically conductive material defining an electrical contact window to control current distribution within the laser, and material positioned on the surface of the mesa shaped area with an optical thickness selected to provide a desired mirror reflectivity profile which controls the optical mode independently of the mesa edges, thereby, providing separate control of the current and the optical mode.

REFERENCES:
patent: 4665527 (1987-05-01), Akiba et al.
patent: 4873696 (1989-10-01), Coldren et al.
patent: 4943970 (1990-07-01), Bradley
patent: 5034092 (1991-07-01), Lebby et al.
patent: 5068868 (1991-11-01), Deppe et al.
patent: 5111467 (1992-05-01), Bradley
patent: 5115441 (1992-01-01), Kopf et al.
patent: 5212703 (1993-05-01), Kahen

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