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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 21 — Nov. 1, 2010
  • pp: 3709–3711

Graphene-based passively Q-switched dual-wavelength erbium-doped fiber laser

Zhengqian Luo, Min Zhou, Jian Weng, Guoming Huang, Huiying Xu, Chenchun Ye, and Zhiping Cai  »View Author Affiliations


Optics Letters, Vol. 35, Issue 21, pp. 3709-3711 (2010)
http://dx.doi.org/10.1364/OL.35.003709


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Abstract

We demonstrate a compact Q-switched dual-wavelength erbium-doped fiber (EDF) laser based on graphene as a saturable absorber (SA). By optically driven deposition of graphene on a fiber core, the SA is constructed and inserted into a diode-pumped EDF laser cavity. Also benefiting from the strong third-order optical nonlinearity of graphene to suppress the mode competition of EDF, a stable dual-wavelength Q-switching operation has been achieved using a two-reflection peak fiber Bragg grating as the external cavity mirror. The Q-switched EDF laser has a low pump threshold of 6.5 mW at 974 nm and a wide range of pulse-repetition rate from 3.3 to 65.9 kHz . The pulse duration and the pulse energy have been characterized. This is, to the best of our knowledge, the first demonstration of a graphene-based Q-switched laser.

© 2010 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(140.3510) Lasers and laser optics : Lasers, fiber
(140.3540) Lasers and laser optics : Lasers, Q-switched

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: August 17, 2010
Revised Manuscript: September 30, 2010
Manuscript Accepted: October 6, 2010
Published: October 29, 2010

Citation
Zhengqian Luo, Min Zhou, Jian Weng, Guoming Huang, Huiying Xu, Chenchun Ye, and Zhiping Cai, "Graphene-based passively Q-switched dual-wavelength erbium-doped fiber laser," Opt. Lett. 35, 3709-3711 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-21-3709

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