Laser diode array with lateral coupling

Details Laser diode array with lateral coupling Laser diode array with lateral coupling

1988-05-20

1989-10-17

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

372 46, H01S 319

Patent

active

048752177

ABSTRACT:
A laser diode array includes ridges formed in a cover layer forming an upper layer of a semiconductor body, the ridges being provided with separate contacts to produce laser active stripes in an active layer situated between a substrate and the cover layer. The thickness of the cover layer between the ridges is such that lateral coupling is achieved, while the thickness of the cover layer in the region adjoining the outside edges of the outer ridges is small enough so that lateral emission losses are low as the result of quasi-index guidance based on the metal clad ridge waveguide principle. A second embodiment provides wave guidance at the outside edges of the outer ridges by a buried heterostructure principle.

REFERENCES:
patent: 4692925 (1987-09-01), Botez
patent: 4719630 (1988-01-01), Streifer
patent: 4722089 (1988-01-01), Botez et al.

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