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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9950–9955

Large energy laser pulses with high repetition rate by graphene Q-switched solid-state laser

Xian-lei Li, Jin-long Xu, Yong-zhong Wu, Jing-liang He, and Xiao-peng Hao  »View Author Affiliations

Optics Express, Vol. 19, Issue 10, pp. 9950-9955 (2011)

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We demonstrated that the graphene could be used as an effective saturable absorber for Q-switched solid-state lasers. A graphene saturable absorber mirror was fabricated with large and high-quality graphene sheets deprived from the liquid phase exfoliation. Using this mirror, 105-ns pulses and 2.3-W average output power are obtained from a passively Q-switched Nd:GdVO4 laser. The maximum pulse energy is 3.2 μJ. The slope efficiency is as high as 37% approximating to 40% of the continue-wave laser, indicating a low intrinsic loss of the graphene.

© 2011 OSA

OCIS Codes
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state
(160.4330) Materials : Nonlinear optical materials
(230.4170) Optical devices : Multilayers

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 28, 2011
Revised Manuscript: April 29, 2011
Manuscript Accepted: May 4, 2011
Published: May 5, 2011

Xian-lei Li, Jin-long Xu, Yong-zhong Wu, Jing-liang He, and Xiao-peng Hao, "Large energy laser pulses with high repetition rate by graphene Q-switched solid-state laser," Opt. Express 19, 9950-9955 (2011)

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