Quantum well wave modulator and optical detector

Details Quantum well wave modulator and optical detector Quantum well wave modulator and optical detector

1992-04-24

1993-09-28

Lobo, Ian J.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

H01L 310352, G02F 1015

Patent

active

052490750

ABSTRACT:
A quantum well wave modulator comprises a central well sandwiched by two lateral wells. The central well is populated with electrons and the two lateral wells, having different constitutions, are coupled to the central well so as to modulate two light waves under the effect of the application of an electrical field perpendicularly to the structure in one direction or in the opposite direction.

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Superlattices and Microstructures, vol. 4, No. 6, 1988, London, GB, pp. 737-739, M. Paton, et al., "A Novel Asymmetrically Coupled Quantum Well Infrared Modulator".
Physical Review B: Condensed Matter, vol. 40, No. 15, Aug. 15, 1989, New York, USA, pp. 3028-3031, D. Y. Oberli et al., "Direct Measurement of Resonant and Nonresonant Tunneling Times in . . . ".
IEEE Journal of Quantum Electronics, vol. 25, No. 7, Jul. 1989, New York, USA, pp. 1671-1676, P. F. Yuh, et al., "Large Stark Effects for Transitions From Local States To Global States In Quantum Well . . . ".

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