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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 16 — Aug. 15, 2007
  • pp: 2408–2410

All-normal-dispersion femtosecond fiber laser with pulse energy above 20 nJ

Andy Chong, William H. Renninger, and Frank W. Wise  »View Author Affiliations

Optics Letters, Vol. 32, Issue 16, pp. 2408-2410 (2007)

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We report a study of the scaling and limits to pulse energy in an all-normal-dispersion femtosecond fiber laser. Theoretical calculations show that operation at large normal cavity dispersion is possible in the presence of large nonlinear phase shifts, owing to strong pulse shaping by spectral filtering of the chirped pulse in the laser. Stable pulses are possible with energies of tens of nanojoules. Experimental results from Yb-doped fiber lasers agree with the trends of numerical simulations. Stable and self-starting pulses are generated with energies above 20 nJ, and these can be dechirped to < 200 fs duration. Femtosecond pulses with peak powers near 100 kW are thus available from this simple and practical design.

© 2007 Optical Society of America

OCIS Codes
(140.7090) Lasers and laser optics : Ultrafast lasers
(320.5540) Ultrafast optics : Pulse shaping
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Ultrafast Optics

Original Manuscript: May 16, 2007
Revised Manuscript: June 21, 2007
Manuscript Accepted: June 21, 2007
Published: August 6, 2007

Andy Chong, William H. Renninger, and Frank W. Wise, "All-normal-dispersion femtosecond fiber laser with pulse energy above 20nJ," Opt. Lett. 32, 2408-2410 (2007)

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