Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1982-06-10
1985-02-19
Moskowitz, Nelson
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
330 43, 307425, 372 21, H01S 3098, H01S 323, H01S 330
Patent
active
045008558
ABSTRACT:
An apparatus and method of producing a phase conjugate replica of a light beam involves internal reflection of the beam within a body of mixing material which lacks inversion symmetry. The orientation of the body relative to the incoming beam is adjusted such that at least one auxiliary beam splits off from the incoming beam, is internally reflected at least twice by the surface of the material and returns to the incoming beam within the material for scattering as an oppositely directed phase conjugate replica thereof.
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Feinberg et al., "Phase-Conjugating Mirror with Continuous-Wave Gain", Optics Letters, vol. 5, No. 12, Dec. 1980.
Lam et al., "Photorefractive-Index Gratings Formed by Nanosecond Optical Pulses in BaTiO.sub.3 " Optics Letters, vol. 6, No. 10, Oct. 1981.
White et al., "Coherent Oscillation by Self-Induced Gratings in the Photorefractive Crystal BaTiO.sub.3 ", Appl. Phys. Lett. 40 (6), 3/15/82.
Feinberg et al., "Asymmetric Self-Defocusing of an Optical Beam from the Photorefractive Effect", J. Opt. Soc. Am., vol. 72, Jan. 1982.
Moskowitz Nelson
University of Southern California
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