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

doi:10.1364/OE.21.001997

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.

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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