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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 21, Iss. 12 — Dec. 1, 2004
  • pp: 2137–2141

Single-frequency operation of a Cr:YAG laser from 1332 to 1554 nm

David Welford and Martin A. Jaspan  »View Author Affiliations


JOSA B, Vol. 21, Issue 12, pp. 2137-2141 (2004)
http://dx.doi.org/10.1364/JOSAB.21.002137


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Abstract

We report the first demonstration to our knowledge of broadly tunable, single-frequency operation of a cw Cr:YAG laser. Single-frequency operation was obtained from 1332 to 1554 nm with a maximum output power of 680 mW generated at 1457 nm with 10% conversion efficiency of 1047-nm pump laser radiation. A traveling-wave ring resonator was forced to operate unidirectionally by use of Faraday rotation in the Cr:YAG gain medium with a nonplanar resonator alignment, providing the required compensating polarization rotation. Tuning was accomplished with a single-plate birefringent tuning element, and single-longitudinal-mode operation was obtained by the addition of a 9.5-mm-thick uncoated CaF2 etalon. An instrument-limited single-frequency linewidth of 2.3 MHz was measured.

© 2004 Optical Society of America

OCIS Codes
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.3600) Lasers and laser optics : Lasers, tunable

Citation
David Welford and Martin A. Jaspan, "Single-frequency operation of a Cr:YAG laser from 1332 to 1554 nm," J. Opt. Soc. Am. B 21, 2137-2141 (2004)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-21-12-2137

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