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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 5 — Apr. 29, 2014

Efficient eye-safe neodymium doped composite yttrium gallium garnet crystal laser

Haohai Yu, Shuxian Wang, Shuo Han, Kui Wu, Liangbi Su, Huaijin Zhang, Zhengping Wang, Jun Xu, and Jiyang Wang  »View Author Affiliations


Optics Letters, Vol. 39, Issue 6, pp. 1341-1344 (2014)
http://dx.doi.org/10.1364/OL.39.001341


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Abstract

We report a laser-diode pumped continuous-wave (cw) and passively Q-switched eye-safe laser at about 1.42 μm with the neodymium-doped yttrium gallium garnet (Nd:YGG) crystal for the first time to our knowledge. The composite Nd:YGG crystal was developed originally. A systematic comparison of laser performance between the homogeneously doped and composite Nd:YGG crystal was made, which showed that the composite Nd:YGG manifested less thermally induced effects. Cw output power of 2.06 W was obtained with the slope efficiency of 20.7%. With a V:YAG as a saturable absorber, the passive Q-switching at 1.42 μm was gotten with the pulse width, pulse energy, and peak power of 34 ns, 46.7 μJ, and 1.4 kW, respectively. The present work should provide a potential candidate for the generation of eye-safe lasers.

© 2014 Optical Society of America

OCIS Codes
(140.3380) Lasers and laser optics : Laser materials
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3540) Lasers and laser optics : Lasers, Q-switched

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 10, 2013
Revised Manuscript: January 27, 2014
Manuscript Accepted: January 27, 2014
Published: March 4, 2014

Virtual Issues
Vol. 9, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Haohai Yu, Shuxian Wang, Shuo Han, Kui Wu, Liangbi Su, Huaijin Zhang, Zhengping Wang, Jun Xu, and Jiyang Wang, "Efficient eye-safe neodymium doped composite yttrium gallium garnet crystal laser," Opt. Lett. 39, 1341-1344 (2014)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-39-6-1341


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