Coupled quantum-well electro-optical modulator

Details Coupled quantum-well electro-optical modulator Coupled quantum-well electro-optical modulator

1989-12-14

1992-04-14

LaRoche, Eugene R.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359248, 359278, 359321, 357 4, 357 30, G02F 103, G02F 123, G02F 100, H01L 2712

Patent

active

051053012

ABSTRACT:
A coupled quantum well electro-optical modulator, whose semiconductor structure is composed of one or of a plurality of successions formed by two layers capable of forming quantum wells, of a barrier layer which separates the two layers and of an intrinsic layer which separates the succession from other possible successions, where in presence of an electric field the absorption threshold of the light radiation shifts towards shorter wavelengths.

REFERENCES:
patent: 4439782 (1984-03-01), Holonyak, Jr.
patent: 4694312 (1987-09-01), Yamazaki
patent: 4716449 (1987-12-01), Miller
patent: 4833511 (1989-05-01), Sugimoto
D. S. Chemla et al.; "Electroabsorption by Stark effect on room temperature excitons in GaAs/GaAlAs multiple quantum well structures"; Appl. Phys. Lett. 42(10) 15 May 1983 p. 864.
D. A. B. Miller; "Novel Optical Modulators and Bistable Devices using the Self Electro-optic Effect in Semiconductor Quantum Wells"; The Second Int. Conference on Modulated Semiconductors-collected papers Sep. 1985 p. 459.

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