Optical modulator

Details Optical modulator Optical modulator

1986-05-07

1989-07-11

Tarcza, Thomas H.

Modulators

Amplitude modulator

Nonlinear device controlled by modulating signal

357 17, H01L 3300

Patent

active

048475734

ABSTRACT:
An optical modulator which utilizes the Stark effect according to which the absorption spectra change if an electric field is applied to the excitons. A thin film of a suitable thickness composed of a semiconductor and an insulator or composed of either one of them, is formed between a group of electrons and a group of positive holes that constitute excitons, so that the excitons are stabilized. The optical modulator performs the modulation at high speeds maintaining a high efficiency.

REFERENCES:
patent: 4288757 (1981-09-01), Kajimura et al.
patent: 4438446 (1984-03-01), Tsang
patent: 4518934 (1985-05-01), Venkatesan
patent: 4525687 (1985-06-01), Chemla et al.
patent: 4546480 (1985-10-01), Burnham et al.
patent: 4602370 (1986-07-01), Tsang
patent: 4607369 (1986-08-01), Niina et al.
patent: 4611328 (1986-09-01), Liu et al.

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