Semiconductor laser device including a step electrode in a form

Details Semiconductor laser device including a step electrode in a form Semiconductor laser device including a step electrode in a form

1993-12-06

1995-02-28

Bovernick, Rodney B.

Coherent light generators

Particular active media

Semiconductor

372 44, 372 46, 372 47, H01S 319

Patent

active

053944216

ABSTRACT:
A highly reliable semiconductor laser device capable of exhibiting a good current-light output characteristic and a fabrication process therefore is provided. The semiconductor laser device is provided with a step in a region adjacent a laser-light-emitting edge to separate an upper electrode into two, one of which is located adjacent the laser-light-emitting edge and does not allow current to flow in the underlying portion even if the other is applied with voltage, thereby forming a current-noninjection region in the region adjacent the later-light-emtting edge. Due to such an arrangement, deterioration of device characteristics due to local heat generation can be assuredly prevented without changing the structure adjacent the active layer and the current-confining structure which dominate the characteristics of the semiconductor laser.

REFERENCES:
patent: 4506366 (1985-03-01), Chinone et al.
patent: 4817103 (1989-03-01), Holonyak, Jr. et al.
patent: 4890293 (1989-12-01), Taneya et al.
patent: 5010376 (1991-04-01), Nishimura et al.
patent: 5151913 (1992-09-01), Ueno
patent: 5218613 (1993-06-01), Serreze
patent: 5280535 (1994-01-01), Gfeller et al.

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