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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 10 — May. 14, 2004
  • pp: 1075–1077

Efficient 1645-nm Er:YAG laser

York E. Young, Scott D. Setzler, Kevin J. Snell, Peter A. Budni, Thomas M. Pollak, and E. P. Chicklis  »View Author Affiliations


Optics Letters, Vol. 29, Issue 10, pp. 1075-1077 (2004)
http://dx.doi.org/10.1364/OL.29.001075


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Abstract

We report a resonantly fiber-laser-pumped Er:YAG laser operating at the eye-safe wavelength of 1645 nm, exhibiting 43% optical efficiency and 54% incident slope efficiency and emitting 7-W average power when repetitively Q switched at 10 kHz. To our knowledge, this is the best performance (conversion efficiency and average power) obtained from a bulk solid-state Q -switched erbium laser. At a 1.1-kHz pulse repetition frequency the laser produces 3.4-mJ pulses with a corresponding peak power of 162 kW. Frequency doubling to produce 822.5-nm, 4.7-kW pulses at 10 kHz was performed to demonstrate the laser’s utility.

© 2004 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3540) Lasers and laser optics : Lasers, Q-switched
(280.3400) Remote sensing and sensors : Laser range finder

Citation
York E. Young, Scott D. Setzler, Kevin J. Snell, Peter A. Budni, Thomas M. Pollak, and E. P. Chicklis, "Efficient 1645-nm Er:YAG laser," Opt. Lett. 29, 1075-1077 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-10-1075

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