Coherent light generators – Particular beam control device – Nonlinear device
Patent
1997-10-06
1999-06-01
Bovernick, Rodney
Coherent light generators
Particular beam control device
Nonlinear device
H01S 310
Patent
active
059094567
ABSTRACT:
A laser beam generator includes first and second mirrors, a laser light source, a laser medium, a non-linear optical crystal element and a birefringent element. The laser light source generates a pumping light beam. The laser medium, arranged between the first and second mirrors, is irradiated with the pumping light beam via one of the mirrors to generate a fundamental laser beam based on the pumping light beam. The non-linear optical crystal element is arranged between the first and second mirrors to generate a second harmonic laser beam under the type II phase matching as the fundamental laser beam from the laser medium is passed through it in resonant oscillation. The birefringent element has its one surface at a pumping light beam inlet side coated with a high reflectance coating and has its opposite surface parallel to it with a nonreflective coating. The birefringent element is set so that its optical axis is inclined at a predetermined azimuth angle with respect to the crystal axis of the non-linear optical crystal element. The surface of the birefringent element coated with a high reflectance coating constitutes one of the first or second mirrors.
REFERENCES:
patent: 4933947 (1990-06-01), Anthon et al.
patent: 5177751 (1993-01-01), Kobayashi et al.
patent: 5193096 (1993-03-01), Amano
patent: 5197073 (1993-03-01), Oka
patent: 5245618 (1993-09-01), Masuda et al.
patent: 5303250 (1994-04-01), Masude et al.
Patent Abstracts Of Japan, vol. 15, No. 359 (E-1110), Nov. 9, 1991, (Matsushita Electric Ind. Co., Ltd.) "Inner Multiple Harmonic Laser Oscillator", Toshiharu et al.
Patent Abstracts Of Japan, vol. 16, No. 163, (P-1341), Apr. 2, 1992, (Olympus Optical Co. Ltd.), "Stabilizing Device for Output of Light Wavelength Converter", Kazumasa et al.
Laser Focus/Electro-Optics, Feb. 24, 1988, Tulsa, OK., "Visible Solid-State Laser-External Nd:YAG Doubler Sets Efficiency Mark", G. Forrest, pp. 26-27.
Applied Physics B: Photo-Physics and Laser Chemis, "Enhancement of Second Harmonic Generation by Double-Pass Configuration in Barium Borate", Nov. 1990, No. 5, Berlin, DE., G. C. Bhar et al., pp. 317-319.
IEEE Journal Of Quantum Electronics, "Efficient Frequency Conversion of Mode-Locked Diode-Pumped Lasers and Tunable All-Solid-State Laser Sources", Apr. 28, 1992, No. 4, NY, NY., USA, Graeme P.A. Malcolm, et al., pp. 1172-1178.
Optical Society Of America, "Efficient second-harmonic conversion of cw single-frequency Nd:YAG laser light by frequency locking to a monolithic ring frequency doubler", Jul. 16, 1991, No. 13, NY, NY, USA, D.C. Gerstenberger et al., pp. 992-994.
Bovernick Rodney
Sony Corporation
Wise Robert E.
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