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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 17 — Sep. 1, 2013
  • pp: 3233–3236

Graphene Q-switched 2.78 μm Er3+-doped fluoride fiber laser

Chen Wei, Xiushan Zhu, F. Wang, Y. Xu, Kaushik Balakrishnan, Feng Song, Robert A. Norwood, and N. Peyghambarian  »View Author Affiliations

Optics Letters, Vol. 38, Issue 17, pp. 3233-3236 (2013)

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We report a diode-pumped 2.78 μm Er3+-doped ZBLAN fiber laser passively Q switched by a graphene saturable absorber, which was directly deposited onto a fiber dichroic mirror by the method of optically driven deposition. Stable Q-switched operation with a pulse duration of 2.9 μs and a pulse energy of 1.67 μJ was achieved in a 10 m long gain fiber. The pulse duration was reduced to 1 μs when the gain fiber length was shortened to 2 m. This Letter demonstrates that graphene is a promising and reliable saturable absorber for mid-infrared pulse generation at 3 μm.

© 2013 Optical Society of America

OCIS Codes
(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
(140.3540) Lasers and laser optics : Lasers, Q-switched

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 13, 2013
Revised Manuscript: July 18, 2013
Manuscript Accepted: July 21, 2013
Published: August 20, 2013

Chen Wei, Xiushan Zhu, F. Wang, Y. Xu, Kaushik Balakrishnan, Feng Song, Robert A. Norwood, and N. Peyghambarian, "Graphene Q-switched 2.78 μm Er3+-doped fluoride fiber laser," Opt. Lett. 38, 3233-3236 (2013)

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