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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 2 — Jan. 28, 2013
  • pp: 1997–2002

All-fiber passively Q-switched fiber laser with a Sm-doped fiber saturable absorber

Yi Lu and Xijia Gu  »View Author Affiliations


Optics Express, Vol. 21, Issue 2, pp. 1997-2002 (2013)
http://dx.doi.org/10.1364/OE.21.001997


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Abstract

We demonstrate an all-fiber passively Q-switched Yb-doped laser using a piece of Sm-doped fiber as a saturable absorber. The laser was pumped by two 25W, 975 nm fiber coupled diodes and Q-switching was initiated when the ASE generated in the core of the gain fiber bleached the Sm-doped saturable absorber. The laser produced 1064 nm pulses with 28 μJ pulse energy and a 200 ns pulse width at a repetition rate of 100 kHz. The pulse energy and peak power are an order of magnitude higher than what previous reported which was also in all-fiber configuration. Effects of laser parameters, such as Sm-fiber length, pump power and duration on laser performance were presented and discussed. Stable Q-switched pulses were obtained at the repetition rate varying from 10 kHz to 100 kHz, which makes this laser suitable for different applications.

© 2013 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(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: November 26, 2012
Revised Manuscript: December 22, 2012
Manuscript Accepted: December 23, 2012
Published: January 17, 2013

Citation
Yi Lu and Xijia Gu, "All-fiber passively Q-switched fiber laser with a Sm-doped fiber saturable absorber," Opt. Express 21, 1997-2002 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-2-1997


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References

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