Coherent light generators – Particular component circuitry – Optical pumping
Patent
1986-05-20
1988-01-19
LaRoche, Eugene R.
Coherent light generators
Particular component circuitry
Optical pumping
350354, 372 21, 372 99, 332 751, G02B 523, G02F 101
Patent
active
047201762
ABSTRACT:
A phase conjugate resonator (PCR) (2) employing a phase conjugate mirror (PCM) (4) provides high resolution spatial detection of individual locations in a two-dimensional optical array which exceed or fall below a threshold level. The optical intensity profile under investigation is imposed onto an input erase beam (18) to the PCM (4). The erase beam (18) is directed parallel to the PCR axis (16), thereby preventing walkoff. The PCR (2) oscillates at those locations where the erase beam's optical intensity is below a threshold level. The spatially modulated optical output may be read out with multiple detectors or an imaging system, or the cumulative area output of the PCR can be read out with a single detector (28) to characterize the intensity profile relative to the threshold.
REFERENCES:
C. R. Giuliano et al., "Can Phase Conjugate Resonators Enhance Laser Performance?", Laser Focus, Feb. 1983, pp. 55-64.
J. P. Huignard et al., "Wave Mixing in Photorefractive Bismuth Silicon Oxide Crystals and its Applications", Optical Engineering, vol. 24, No. 4, Jul./Aug. 1985, pp. 586-592.
Amos Hardy, "Sensitivity of Phase-Conjugate Resonators to Intracavity Phase Perturbations", IEEE Journal of Quantum Electronics, vol. QE-17, No. 8, Aug. 1981, pp. 1581-1585.
P. A. Balanger, "Phase Conjugation and Optical Resonators", Optical Engineering, vol. 21, No. 2, Mar./Apr. 1982, pp. 266-270.
J. Auyeung et al., "A Theoretical and Experimental Investigation of the Modes of Optical Resonators with Phase-Conjugate Mirrors," IEEE J. of Quantum Electronics, vol. QE-15, No. 10, Oct. 1979, pp. 1180-1188.
H. Rajbenbach et al., "Self-Induced Coherent Oscillations with Photorefractive Bi.sub.12 SiO.sub.20 Amplifier", Optics Letters, Mar. 1985, vol. 10, No. 3, pp. 137-139.
A. Yariv, "Phase Conjugate Optics and Real-Time Holography", IEEE Journal of Quantum Electronics, vol. QE-14, No. 9, Sep. 1978.
A. E. Siegman et al., "Optical Resonators Using Phase Conjugate Mirrors", Optical Phase Conjugation, R. A. Fisher, Ed., (Academic Press, N.Y. 1983).
D. Psaltis et al., "Photorefractive Incoherent-to-Coherent Optical Conversion", SPIE, vol. 465, 1984, pp. 2 thru 8.
A. A. Kamshilin et al., "Holographic Image Conversion in a Bi.sub.12 SiO.sub.20 Crystal", Sov. Tech. Phys. Lett. 6(3), Mar. 1980, pp. 144 & 145.
J. Feinberg et al., "Phase-Conjugating Mirror with Continuous-Wave Gain", Optics Letters, vol. 5, No. 12, Dec. 1980, pp. 519-521.
Dunning Gilmore J.
Klein Marvin B.
Valley George C.
Duraiswamy V. D.
Hughes Aircraft Company
Karambelas A. W.
LaRoche Eugene R.
Laslo V. G.
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