Laser

Details Laser Laser

1992-06-01

1994-03-15

Epps, Georgia Y.

Coherent light generators

Particular beam control device

Nonlinear device

372 21, 372 71, 372 69, 359328, H01S 310

Patent

active

052951448

ABSTRACT:
To produce blue light by means of a laser, pumped light is coupled into a birefringent, nonlinear crystal (5) in a variable frequency laser (1) from a laser diode pumped light source (7, 8, 9) via an input mirror (3). Due to adjustment of the inclination of the crystal (5) or with the aid of tempering means (6) for the crystal, most of the pumped light is absorbed in the crystal (5)--upon suitable polarization of the pumped light--while the rest is available for a frequency mixture of the fundamental Wave of the laser and of the pumped light. Via an output mirror (4) blue laser light with a Wavelength of e.g. 459 nm is coupled out, with a fundamental wave of e.g. 1064 nm and pumped light with a wavelength of e.g. 806 nm.

REFERENCES:
patent: 3644842 (1972-02-01), Uchida et al.
patent: 4731787 (1988-03-01), Fan et al.
patent: 4791631 (1988-12-01), Baumert et al.
patent: 4879722 (1989-11-01), Dixon et al.
patent: 4884276 (1989-11-01), Dixon et al.
S. R. Chinn et al., "Spiking Oscillations in Diode-Pumped NdP.sub.5 O.sub.14 and NdAl.sub.3 (BO.sub.3).sub.4 Lasers", IEEE J. Quantum Electron., vol. QE-12, No. 3, Mar. 1976, pp. 189-193.
T. Y. Fan et al., "Efficient GaAlAs Diode-Laser-Pumped Operation of Nd:YLF at 1.047 .mu.m with Intracavity Doubling to 523.6 nm", Opt. Lett., vol. 11, No. 4, Apr. 1976, pp. 204-206.
I. Schutz et al., "Miniature Self-Frequency-Doubling CW Laser Pumped By a Diode-Laser", Opt. Comm., vol. 77, No. 2, Jun. 15, 1990, pp. 221-225.
H. Hemmati, "Diode-Pumped Self-Frequency-Doubled Neodymium Yttrium Aluminum Borate (NYAB) Laser", IEEE J. Quant. Electron., vol. 28, No. 4, Apr. 1992, pp. 1169-1171.

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