Optical device

Details Optical device Optical device

1987-12-29

1990-02-13

LaRoche, Eugene R.

350 9613, G02F 117

Patent

active

049001345

ABSTRACT:
An optical device having a material exhibits an optical rectification effect is disclosed. The optical device utilizes direct current polarization which is induced in the material by a control light. The induction of the direct current polarization in the material by the control light changes the refractive index and absorption spectrum of the material. This is based on the so-called electrooptic effect and Franz-Keldysh effect. The present invention provides the optical device according to which external incident light can be modulated at high speed with the control light by utilizing the change of the refractive index or the change of the absorption spectrum.

REFERENCES:
patent: 4382660 (1983-05-01), Pratt, Jr. et al.
patent: 4573767 (1986-03-01), Jewell
patent: 4626075 (1986-12-01), Chemla
patent: 4693547 (1987-09-01), Soref et al.
patent: 4701030 (1987-10-01), Jewell

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