High wavelength laser device

Coherent light generators – Particular pumping means – Pumping with optical or radiant energy

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372 3, 372 5, 372 55, 372 99, H01S 330

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active

052220931

ABSTRACT:
A laser having a glass enclosure placed in an optical cavity receives a pump beam and generates at least one first-order and one second-order Stokes wave. The construction is such that an optical waveguide placed in the gas enclosure is used to select the first and the second-order Stokes wave.

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patent: 4716449 (1987-12-01), Miller
patent: 4818079 (1989-04-01), Maserjian
patent: 4933943 (1990-06-01), Narhi et al.
IEEE Journal of Quantum Electronics, vol. OE-22, No. 6, Jun. 1986, pp. 797-801, IEEE, New York, US; P. Rabinowitz et al.: "A continuously tunable sequential stokes raman laser".
Optics Communications, vol. 57, No. 5, Apr. 1986, pp. 360-364, ElsevierScience Publishers B.V. Amsterdam, NL; L. Mannik et al.: "Tunable infrared generation using third stokes output from a waveguide raman shifter".
Applied Optics, vol. 28, No. 1, Jan. 1989, pp. 135-138, Optical Society of America, New York, US; C. Guntermann et al.: "Raman shifting of Nd: YAG laser radiation in methane: an efficient method to generate 3-mum radiation for medical uses".

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