Semiconductor optical amplifier

Details Semiconductor optical amplifier Semiconductor optical amplifier

1994-11-10

1996-11-26

Moskowitz, Nelson

Optical: systems and elements

Optical amplifier

Particular active medium

359337, 250214LA, 257 14, H01S 319, H01S 318

Patent

active

055791557

ABSTRACT:
A semiconductor optical amplifier having a large gain and a high saturation optical output power has a uniform cross-section of an active layer. In the semiconductor optical amplifier, the band gap wavelength of the active layer in the vicinity of the light-emitting end is shorter than that in the vicinity of the light-receiving end. The active layer may have a multiple quantum well structure, or the active layer may have a tesile-strained (compressively strained) multiple quantum well structure in which the absolute strain quantity in the vicinity of the light-emitting end is larger than that in the vicinity of the light-receiving end.

REFERENCES:
patent: 4470143 (1984-09-01), Kitamura et al.
patent: 5084894 (1992-01-01), Yamamoto
patent: 5175643 (1992-12-01), Andrews
patent: 5184247 (1993-02-01), Schimpe
patent: 5196958 (1993-03-01), Verbeek et al.

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