Semiconductor laser element structure

Details Semiconductor laser element structure Semiconductor laser element structure

1993-11-05

1995-05-23

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

372 36, 372 50, 372109, H01S 319

Patent

active

054187990

ABSTRACT:
A semiconductor laser device element substrate includes a plurality of semiconductor laser device elements arranged in an array on a semiconductor substrate, the array including a plurality of rows and a plurality of columns, laser resonator facets being located at the boundaries between respective rows of the semiconductor laser device elements, and element separation guiding grooves, for guiding separation of the substrate into a plurality of divided semiconductor laser devices, the grooves being located at the boundaries between the semiconductor laser device elements of the respective columns, wherein the element separation guiding grooves are arranged at positions on different straight lines running in the column direction for each group at least two adjacent rows. Therefore, even if some forces are applied to the substrate, the forces are not concentrated on a point, whereby wafer cracking can be prevented.

REFERENCES:
patent: 4672736 (1985-08-01), Westermeier
patent: 4883771 (1989-11-01), Kumabe et al.
patent: 5061974 (1991-10-01), Onodera et al.

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