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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 35, Iss. 4 — Feb. 15, 2010
  • pp: 607–609

Low-cost cavity-dumped femtosecond Cr:LiSAF laser producing >100 nJ pulses

Umit Demirbas, Kyung-Han Hong, James G. Fujimoto, Alphan Sennaroglu, and Franz X. Kärtner  »View Author Affiliations


Optics Letters, Vol. 35, Issue 4, pp. 607-609 (2010)
http://dx.doi.org/10.1364/OL.35.000607


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Abstract

We report a low-cost cavity-dumped Cr:colquiriite laser for generating enhanced pulse energies. Four single-mode laser diodes were used to pump a Cr:LiSAF laser, which was mode locked with a semiconductor saturable absorber mirror. Cavity dumping at 10 kHz repetition rate, the laser generated 120   fs pulses at 825   nm , with 112 nJ pulse energies and 0.93   MW of peak power, using only 600   mW of incident pump power. At higher dumping rates of up to 1 MHz, reduced pulse energies of 62 nJ could be generated. Two-photon absorption in the saturable absorber mirror limits pulse durations, while Q-switching instabilities limit pulse energy extraction.

© 2010 Optical Society of America

OCIS Codes
(140.3460) Lasers and laser optics : Lasers
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.4050) Lasers and laser optics : Mode-locked lasers
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 14, 2009
Manuscript Accepted: December 22, 2009
Published: February 12, 2010

Citation
Umit Demirbas, Kyung-Han Hong, James G. Fujimoto, Alphan Sennaroglu, and Franz X. Kärtner, "Low-cost cavity-dumped femtosecond Cr:LiSAF laser producing >100 nJ pulses," Opt. Lett. 35, 607-609 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-4-607


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