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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 6 — Mar. 15, 2006
  • pp: 754–756

Highly efficient in-band pumped Er:YAG laser with 60 W of output at 1645 nm

D. Y. Shen, J. K. Sahu, and W. A. Clarkson  »View Author Affiliations


Optics Letters, Vol. 31, Issue 6, pp. 754-756 (2006)
http://dx.doi.org/10.1364/OL.31.000754


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Abstract

A high-power Er:YAG laser that is in-band pumped by a high-power cladding-pumped erbium–ytterbium codoped fiber laser operating at 1532 nm is reported. The Er:YAG laser produced 60.3 W of continuous-wave output at 1645.3 nm in a beam with M 2 3 for 82 W of incident pump power and 20 W of TEM 00 output with M 2 < 1.2 for 32.4 W of incident pump power. The slope efficiency with respect to incident pump power at pump powers of > 20 W was 81 % . In the Q-switched mode of operation, a slightly modified resonator configuration incorporating an electro-optic Q switch produced pulses of 4 mJ energy and 100 ns (FWHM) duration, corresponding to a peak power of 42 kW at a repetition rate of 1 kHz for an incident pump power of 16.8 W . The prospects for further improvement in continuous-wave and Q-switched performance are discussed.

© 2006 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: November 7, 2005
Manuscript Accepted: December 13, 2005

Citation
D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "Highly efficient in-band pumped Er:YAG laser with 60 W of output at 1645 nm," Opt. Lett. 31, 754-756 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-6-754


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References

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