Integrated optical devices including tunable fixed grating

Details Integrated optical devices including tunable fixed grating Integrated optical devices including tunable fixed grating

1973-03-28

1977-08-02

McGraw, Vincent P.

350160R, G02B 514

Patent

active

040392490

ABSTRACT:
A tunable permanently fixed diffraction grating is interposed in the path of an optical beam propagated in an integrated-optics device. Tuning is accomplished, for example, by establishing a variable electric field in the propagating medium to control its refractive index. In that way the effective grating spacing is changed. As a result tunable optical filters and intensity modulators are thereby realized.

REFERENCES:
patent: 3619796 (1971-11-01), Seidel
patent: 3625589 (1971-12-01), Snitzer
Miller, "A Survey of Integrated Optics", IEEE Journal of Quantum Electronics, vol. QE-8, No. 2, Feb. 1972, pp. 199-205.
Russo et al., "Electrooptic Modulation in a Thin Film Waveguide", Applied Optics, vol. 10, No. 12, Dec. 1971, pp. 2786-2788.

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