Electro-optical light modulator driven by a resonant electrical

Details Electro-optical light modulator driven by a resonant electrical Electro-optical light modulator driven by a resonant electrical

1991-05-28

1993-02-23

LaRoche, Eugene R.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359254, 310320, G02F 103, H01L 4104

Patent

active

051895471

ABSTRACT:
A crystal exhibiting a variable index of refraction in response to a voltage applied across it is driven from a lower voltage signal generator through a passive resonant circuit. The resonant frequency of the circuit is tunable by hand in order to maximize the voltage applied to the crystal from a low voltage signal generator. The impedance of the circuit is also hand adjustable in order to match that of the signal generator. The crystal and driving circuit are packaged together in a single enclosure having optically transparent windows allowing a laser beam to pass through the crystal and be modulated by it according to the frequency of the signal generator.

REFERENCES:
patent: 1830322 (1931-11-01), Hund
patent: 2309083 (1943-01-01), Usselman
patent: 2859346 (1958-11-01), Firestone et al.
patent: 3521942 (1970-07-01), Temple

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