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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 9 — May. 1, 2011
  • pp: 1575–1577

In-band pumped highly efficient Ho:YAG ceramic laser with 21 W output power at 2097 nm

Hao Chen, Deyuan Shen, Jian Zhang, Hao Yang, Dingyuan Tang, Ting Zhao, and Xiaofang Yang  »View Author Affiliations


Optics Letters, Vol. 36, Issue 9, pp. 1575-1577 (2011)
http://dx.doi.org/10.1364/OL.36.001575


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Abstract

We report on the high-power and high-efficiency operation of a polycrystalline Ho:YAG ceramic laser in-band pumped by a Tm fiber laser at 1907 nm . Lasing characteristics of a 1.5   at. % and a 2.0   at. % Ho 3 + -doped YAG ceramic were investigated and compared. Using an output coupler of 6% transmission, over 21.4 W of cw output power at 2097 nm has been generated with the 1.5   at. % doped Ho:YAG ceramic under 35 W of incident pump power, corresponding to an average slope efficiency with respect to the incident pump power of 63.6% and an optical-to-optical conversion efficiency of 61.1%.

© 2011 Optical Society of America

OCIS Codes
(140.3070) Lasers and laser optics : Infrared and far-infrared lasers
(140.3510) Lasers and laser optics : Lasers, fiber
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers
(160.2750) Materials : Glass and other amorphous materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 1, 2011
Revised Manuscript: March 21, 2011
Manuscript Accepted: March 26, 2011
Published: April 22, 2011

Citation
Hao Chen, Deyuan Shen, Jian Zhang, Hao Yang, Dingyuan Tang, Ting Zhao, and Xiaofang Yang, "In-band pumped highly efficient Ho:YAG ceramic laser with 21 W output power at 2097 nm," Opt. Lett. 36, 1575-1577 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-9-1575

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