Coherent coupling of optical gain elements

Details Coherent coupling of optical gain elements Coherent coupling of optical gain elements

1987-05-08

1989-05-23

Sikes, William L.

Coherent light generators

Particular active media

Insulating crystal

372 18, 372 21, 372 75, 372 94, H01S 317, H01S 3098

Patent

active

048336831

ABSTRACT:
Coherent coupling of a plurality of reflection type optical gain elements with a seeding laser is provided by illuminating the optical gain elements with fanned laser light scattered from a photorefractive medium. The reflection type optical gain elements have an anti-reflective end nearer the photorefractive medium and a reflective opposite end. The optical gain elements also illuminate the photorefractive medium. The resultant amplified and coherent light beam has its wavefront cleaned up with a photorefractive oscillator to provide a diffraction limited or nearly diffraction limited beam.

REFERENCES:
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patent: 4648092 (1987-03-01), Ewbank et al.
Shkunov and Zel'dovich, Optical Phase Conjugation, Scientific American, Dec., 1985, pp. 54-59.
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Fischer, et al., Amplified Reflection, Transmission, and Self-Oscillation in Real-Time Holography, vol. 6, No. 11/Optics Letters, Nov. 1981, pp. 519 to 521.
Cronin-Golomb, Yariv and Ury, Coherent Coupling of Diode Lasers by Phase conjugation, App. Phys. Lett. 48(19), 12 May 1986, American Institute of Physics, pp. 1240-1242.
Kwong and Yariv, One-Way, Real Time Wave Front Converters, Appl. Phys. Lett. 48(9), 3 Mar., 1986--American Institute of Physics, pp. 564-566.
Gronin-Golomb, Lau, and Yariv, Infrared Photorefractive Passive Phase Conjugation with BaTiO.sub.3 : Demonstrations with GaAlAs and 1.09-.mu.m Ar.sup.+ Lasers, App. Phys. Lett. 47(6), 15 Sep. 1985, American Institute of Physics, pp. 567-569.
Feinberg and Bacher, Phase-Locking Lasers with Phase Conjugation, Oct. 24, 1986 App. Physics Letters, 14 pages.

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