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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 2 — Jan. 27, 2014
  • pp: 1490–1499

The all-fiber cladding-pumped Yb-doped gain-switched laser

C. Larsen, K. P. Hansen, K. E. Mattsson, and O. Bang  »View Author Affiliations


Optics Express, Vol. 22, Issue 2, pp. 1490-1499 (2014)
http://dx.doi.org/10.1364/OE.22.001490


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Abstract

Gain-switching is an alternative pulsing technique of fiber lasers, which is power scalable and has a low complexity. From a linear stability analysis of rate equations the relaxation oscillation period is derived and from it, the pulse duration is defined. Good agreement between the measured pulse duration and the theoretical prediction is found over a wide range of parameters. In particular we investigate the influence of an often present length of passive fiber in the cavity and show that it introduces a finite minimum in the achievable pulse duration. This minimum pulse duration is shown to occur at longer active fibers length with increased passive length of fiber in the cavity. The peak power is observed to depend linearly on the absorbed pump power and be independent of the passive fiber length. Given these conclusions, the pulse energy, duration, and peak power can be estimated with good precision.

© 2014 Optical Society of America

OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.5560) Lasers and laser optics : Pumping

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: October 22, 2013
Revised Manuscript: December 13, 2013
Manuscript Accepted: January 2, 2014
Published: January 15, 2014

Citation
C. Larsen, K. P. Hansen, K. E. Mattsson, and O. Bang, "The all-fiber cladding-pumped Yb-doped gain-switched laser," Opt. Express 22, 1490-1499 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-2-1490


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References

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