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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 8 — Apr. 14, 2008
  • pp: 5807–5812

High-power in-band pumped Er:YAG laser at 1617 nm

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


Optics Express, Vol. 16, Issue 8, pp. 5807-5812 (2008)
http://dx.doi.org/10.1364/OE.16.005807


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Abstract

High-power room-temperature operation of an Er:YAG laser at 1617 nm in-band pumped by a cladding-pumped Er, Yb fiber laser at 1532 nm is reported. The Er:YAG laser yielded 31 W of continuous-wave output in a beam with M2≈2.2 for 72 W of incident pump power. The threshold pump power was 4.1 W and the slope efficiency with respect to incident pump power was ~47%. The influence of erbium doping level and resonator design on laser performance is discussed, and the prospects for further increase in output power and improvement in lasing efficiency are considered.

© 2008 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
(140.3500) Lasers and laser optics : Lasers, erbium
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 26, 2008
Revised Manuscript: April 2, 2008
Manuscript Accepted: April 2, 2008
Published: April 10, 2008

Citation
J. W. Kim, D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "High-power in-band pumped Er:YAG laser at 1617 nm," Opt. Express 16, 5807-5812 (2008)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-16-8-5807


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References

  1. D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "Highly efficient in-band pumped Er:YAG lasers with >60 W of output at 1645 nm," Opt. Lett 31, 754-756 (2006). [CrossRef] [PubMed]
  2. D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "Electro-optically Q-switched Er:YAG laser in-band pumped by an Er Yb fiber laser," Advanced Solid-State Photonics 2006 Nevada WD4 (2006).
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  7. D. Garbuzov, I. Kudryashov, and M. Dubinskii, "110 W (0.9J) pulsed power from resonantly diode-laser-pumped 1.6 μm Er:YAG laser," Appl. Phys. Lett. 87, 121101-121103 (2005). [CrossRef]
  8. M. Dubinskii, N. T. Gabrielyan, G. A. Newburgh, and L. D. Merkle, "Resonantly diode-pumped Er:YAG cryo-laser at 1618 nm," Technical Digest in Advanced Solid-State Photonics 2007, Post-deadline papers MF5 (2007).
  9. I. Kudryashov, D. Garbuzov, and M. Dubinskii, "Volume Bragg grating improves characteristics of resonantly diode pumped Er:YAG 1.65 μm DPSSL," Proc. SPIE  6451, 64510P (2007). [CrossRef]
  10. J. W. Kim, J. K. Sahu, and W. A. Clarkson, "Impact of energy-transfer-upconversion on the performance of hybrid Er:YAG lasers," Proc. SPIE 6871, 6871W (2007).
  11. D. Y. Shen, J. K. Sahu, and W. A. Clarkson, "Highly efficient Er Yb-doped fiber laser with 188W free-running and > 100W tunable output power," Opt. Express 13, 4916-4921 (2005). [CrossRef] [PubMed]

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