Non linear thin layer optical device

Details Non linear thin layer optical device Non linear thin layer optical device

1978-03-14

1980-12-02

Levy, Stewart J.

350 9613, G02B 514

Patent

active

042367859

ABSTRACT:
The invention relates to non-linear optical devices in which significant non-linear interactions are obtained by establishing a "quasi phase matching". The optical device according to the invention comprises on the surface of a substrate a periodic structure formed of zones in which the non-linear coefficient alternately assumes two values of opposite signal. The invention also relates to a process for producing this device. The invention allows generation of harmonics, frequency changing, parametric amplification or parametric oscillation.

REFERENCES:
patent: 3877782 (1975-04-01), Kaminow
patent: 3935472 (1976-01-01), Bethea
patent: 3985423 (1976-10-01), Tseng
patent: 3990776 (1976-11-01), Tseng et al.
patent: 4032216 (1977-06-01), Henry
P. K. Tien et al. "Switching and Modulation of Light in Magneto-Optic . . . " Appl. Phys. Lett., vol. 21, No. 8, Oct. 15, 1972, pp. 394-396.

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