High speed stable light emitting semiconductor device with low t

Details High speed stable light emitting semiconductor device with low t High speed stable light emitting semiconductor device with low t

1986-05-15

1989-03-21

Sikes, William L.

Coherent light generators

Particular active media

Semiconductor

372 96, H01S 319

Patent

active

048150878

ABSTRACT:
A highly efficient light emitting semiconductor device which is stable at high speeds and has a low threshold current comprising a first semiconductor layer of a first conductive type; a second semiconductor layer of the second conductive type which is different from the first conductive type; an active layer composed of laminated semiconductor layers of the quantum well structure interposed between the first and second semiconductor layers and having a narrower effective energy band gap than the first and second semiconductor layers and a diffraction grading formed in either one of the first or second semiconductor layers.

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