Semiconductor laser device having substriped channels for formin

Details Semiconductor laser device having substriped channels for formin Semiconductor laser device having substriped channels for formin

1986-04-22

1989-04-04

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

372 45, 372 46, H01S 319

Patent

active

048192457

ABSTRACT:
A semiconductor laser device comprises a substrate having a main striped channel for confining current therein and sub-striped channels formed in a parallel manner outside of the main striped channel. The width of the sub-striped channels is greater than that of the main striped channel. An active layer is provided for laser oscillation. The portion of the active layer corresponding to the sub-striped channels are formed into a concave portion. The portion of the active layer positioned between the concaved portions of the active layer results in a plane with a limited thickness.

REFERENCES:
patent: 4523317 (1985-06-01), Botez

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