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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 1 — Jan. 1, 2008
  • pp: 71–73

Characteristics of a Q-switched multicore photonic crystal fiber laser with a very large mode field area

Laurent Michaille, David M. Taylor, Charlotte R. Bennett, Terence J. Shepherd, and Benjamin G. Ward  »View Author Affiliations


Optics Letters, Vol. 33, Issue 1, pp. 71-73 (2008)
http://dx.doi.org/10.1364/OL.33.000071


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Abstract

We model and characterize the behavior of a Q-switched fiber laser. The fiber is a doped multicore photonic crystal fiber having six cores in a ring-type geometry. The fiber laser is Q-switched using an intracavity acousto-optic modulator. Using a mode filtering technique in the far field, a mode very close to the fundamental in-phase supermode is obtained with a mode field area of 4200 μ m 2 and a divergence of 9 mrad . Pulses with energies of up to 2.2 mJ and durations of 26 ns (limited by end facet damage) at a repetition rate of 10 kHz are obtained.

© 2008 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(140.3290) Lasers and laser optics : Laser arrays
(140.3510) Lasers and laser optics : Lasers, fiber

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: September 11, 2007
Manuscript Accepted: November 13, 2007
Published: December 21, 2007

Citation
Laurent Michaille, David M. Taylor, Charlotte R. Bennett, Terence J. Shepherd, and Benjamin G. Ward, "Characteristics of a Q-switched multicore photonic crystal fiber laser with a very large mode field area," Opt. Lett. 33, 71-73 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-1-71


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