Solid-medium coherent optical processor

Details Solid-medium coherent optical processor Solid-medium coherent optical processor

1979-03-09

1981-07-28

Willis, Davis L.

350 55, 350294, 350299, G02B 518

Patent

active

042807522

ABSTRACT:
A coherent optical processor device comprised of a monolithic mass of traarent optical material. The device is built up of a plurality of modules, each having a curved reflective surface for performing a Fourier transform operation and a V-shaped reflective surface, for reflecting the beam and directing it to the next module. Plates or masks for changing the amplitude and/or phase of the beam may be inserted in air gaps between contiguous modules. The device provides absolute path length constancy, is not vulnerable to the adverse effects of dust, and minimizes the multiple reflections ordinarily produced at air-glass interfaces.

REFERENCES:
patent: 3438693 (1969-04-01), Cook
patent: 3578846 (1971-05-01), Chen
patent: 3623024 (1971-11-01), Hamilton
patent: 3752564 (1973-08-01), Fletcher et al.
patent: 4111531 (1978-09-01), Lavelle et al.

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