Mushroom-shaped semiconductor stripe laser

Details Mushroom-shaped semiconductor stripe laser Mushroom-shaped semiconductor stripe laser

1985-04-25

1987-09-08

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

H01S 319

Patent

active

046929266

ABSTRACT:
A mushroom-shaped semiconductor stripe laser, particularly with transversal, monomode light distribution and a double heterostructure comprised of a substrate, a laser-active zone, a cover layer and an electrically contacting metal layer for the cover layer with the cover layer being underetched such that a mushroom-shaped structure is formed in which the laser-active zone is constricted to a stripe-shaped region. The ratio of the width of the cover layer to the width of the laser-active zone lies in a range between two and five, and the cover layer is electrically conductively connected with the metal layer on its outer surface as well as on at least one of its side surfaces.

REFERENCES:
patent: 3865646 (1975-02-01), Logan et al.
H. Burkhard et al, "InGaAsP/InP Mushroom Stripe Lasers with Low CW Threshold and High Output Power", Japanese Journal of Applied Physics, vol. 22, No. 11, Nov. 1983, pp. L721-L723.

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