Optical thin film processor for unidimensional signals

Details Optical thin film processor for unidimensional signals Optical thin film processor for unidimensional signals

1978-08-01

1980-09-16

Levy, Stewart J.

350 9614, 350 9619, 350162SF, G02B 514

Patent

active

042226287

ABSTRACT:
An optical thin film processor for the elaboration of unidimensional signals embodies a dielectric thin film transparent to laser radiation, shaped as a spherical lune having an angle of 270.degree., supported by a spherical substrate, formed of material having a refractive index lower than that of the thin film, a point source located on either meridian delimiting the thin film, detecting means on the other meridian, a modulator located on a meridian at 90.degree. relative to the input meridian, and a device lying on the meridian at 180.degree. from the input meridian for the space-filtering of a signal coming from the modulator on the 90.degree. meridian.

REFERENCES:
patent: 3917384 (1975-11-01), Harper et al.
patent: 4153330 (1979-05-01), Tomlinson
G. C. Righini et al., "Thin Film Geodesic Lens," Applied Optics, vol. 11, No. 6, Jun. 1962, pp. 1442-1443.
G. C. Righini et al., "Geodesic Lenses for Integrated Optics," 1973 European Microwave Conf., vol. I, Belgium.
B. Chen et al., "Diffraction-Limited Geodesic Lens for Integrated Optics Circuits," Applied Phys. Lett., vol. 33, No. 6, 1978.

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