Semiconductor laser with conductive current mask

Details Semiconductor laser with conductive current mask Semiconductor laser with conductive current mask

1981-09-28

1984-04-24

Sikes, William L.

Coherent light generators

Particular active media

Semiconductor

372 45, 372 46, 372 50, 372 43, 372 49, H01S 319

Patent

active

044452187

ABSTRACT:
A semiconductor laser is disclosed wherein a grid-like conductive current mask is fabricated between the active region of the laser and one of its electrodes. In one embodiment, the conductive current mask is fabricated in the bottom regions of a corrugated pattern that is created along the length of the semiconductor laser. In a second embodiment, the conductive current mask is totally embedded within a lightly doped buffer layer that is grown proximate to the active region.

REFERENCES:
patent: 4023993 (1977-05-01), Scifres et al.
patent: 4169997 (1979-10-01), Logan et al.

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