Coherent light generators – Particular beam control device – Nonlinear device
Patent
1991-03-26
1992-07-07
Davie, James W.
Coherent light generators
Particular beam control device
Nonlinear device
372 20, 372 22, 372 75, H01S 310
Patent
active
051289482
ABSTRACT:
Disclosed is a solid state rod laser, monolithically integrated with a generator of optic frequencoes different from the emission frequency of the laser. The laser diode pumped solid state laser device has a rod, the seat of the laser effect, made of a nonlinear optic material, by doping with a rare earth, and includes an optic waveguide made in the mass of said rod of doped nonlinear optic material, parallel to the axis of the rod, said optic waveguide cooperating with means for changing the optic frequency of the laser beam. A preferred application is the obtaining of a laser frequency that is double the fundamental frequency making it possible, in the case of a neodymium laser, to obtain a green radiation, for example in digital optic disk readers.
REFERENCES:
patent: 4705346 (1987-11-01), Miyawaki
Proceedings of the Conference on Optical Space Communication, EC02, Paris, Apr. 24-26, 1989, vol. 1131, pp. 247-251; E. Lallier et al.: "Towards a Laser Diode Pumped Nd:LiNbO.sub.3 Waveguide Laser".
J. Opt. Soc. Am. B., vol. 3, No. 1, Jan. 1986, pp. 140-147; T. Y. Fan et al.: "Nd:MgO:LiNbO.sub.3 Spectroscopy and Laser Devices".
IEEE Photonics Technology Letters, vol. 1, No. 10, Oct. 1989, pp. 316-318; J. Webjorn et al.: "Blue Light Generated by Frequency Doubling of Lasr Light in a Lithium Niobate Channel Waveguide".
Proceedings of the 5th European Conference on Integrated Optics, Paris, Apr. 26-28, 1989, vol. 1141, pp. 32-36, M. J. Li et al.: "Cerenkov Configuration Second Harmonic Generation".
Journal of Lightwave Technology, vol. LT-4, No. 7, Jul. 1986, pp. 772-777; W. Sohler et al.: "Integrated Parametric Devices".
Lallier Eric
Papuchon Michel
Pocholle Jean-Paul
"Thomson-CSF"
Davie James W.
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