Interferometer

Details Interferometer Interferometer

1990-03-08

1992-01-14

Hellner, Mark

Optical: systems and elements

Light interference

356345, G02G 2710

Patent

active

050804669

ABSTRACT:
In a Michelson inteferometer with phase conjugate mirrors at least one of such mirrors includes a Kerr medium. This enables control over the relative phases of the beams that are reflected from the mirrors and superimposed to form an output beam. The interferometer can be used to perform a logic function by interposing transparencies in the reflected beams. By appropriate choice of the relative phases a logic OR function can be achieved.

REFERENCES:
patent: 4280764 (1981-07-01), Sica, Jr. et al.
patent: 4718749 (1988-01-01), Chiou et al.
patent: 4768846 (1988-09-01), Connors
Gower, Malcolm C. entitled "Phase Conjugate Mirrors"--published in Phys. Bull. 38 pp. 220-222 (1987).
Ewbank, M. D. et al., entitled "Phase-Conjugate Interferometry" published in SPIE, vol. 464 (1984), pp. 2-6.
Chiou, Arthur E., et al. entitled "Parallel Image Subtraction Using A Phase-Conjugate Michelson Interferometer"--published in Optic Letters, vol. 11, No. 5, May 1986, pp. 306-308.
Kwong, Sze-Keung, et al. entitled "Real Time Image Subtraction and Exclusive or Operation Using A Self Subtraction and Exclusive Or Operation Using A Self Pumped Phase Conjugate Mirror"--published in Applied Physics Letters 43(3), 20 Jan. 1986, pp. 201-203.
McMichael, Ian et al., entitled "Absolute Phase Shift Of Phase Conjugators"--published in Nonlinear Optics and Applications (1986) vol. 613, pp. 32-35.
McMichael, Ian, et al.--entitled "Phase Shifts Of Photorefractive Gratings and Phase-Conjugate Waves"--Optics Letters/ vol. 12, No. 1/ Jan. 1987.
Vainor, N. A. et al. entitled "Real-Time Parallel Optical Logic In Photorefractive Bismuth Silicon Oxide" Optics Letters/ Jun. 1988/ vol. 13, No. 6,

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