Electro-optic modulator with compensation of thermally induced b

Details Electro-optic modulator with compensation of thermally induced b Electro-optic modulator with compensation of thermally induced b

1977-01-31

1978-06-13

Corbin, John K.

350157, G02F 103

Patent

active

040945812

ABSTRACT:
An electro-optic modulator for phase modulating a high power beam of monochromatic electro-magnetic radiation is described where localized phase distortion occurring within the beam due to thermal heating is compensated. The received radiation is passed through two precisely matched electro-optic crystals and an optical compensating element located between the two crystals. One of the crystals has an applied field for modulation purposes. With this arrangement, the thermal birefringent effects induced in the crystals are cancelled out with the output beam polarization properties determined by the input polarization, optical compensating element and applied electric field.

REFERENCES:
patent: 2705903 (1955-04-01), Marshall
patent: 3900247 (1975-08-01), Zaky

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