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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 9 — May. 1, 2010
  • pp: 1446–1448

Diode-pumped passively mode-locked GHz femtosecond Cr:LiSAF laser with kW peak power

Duo Li, Umit Demirbas, Jonathan R. Birge, Gale S. Petrich, Leslie A. Kolodziejski, Alphan Sennaroglu, Franz X. Kärtner, and James G. Fujimoto  »View Author Affiliations


Optics Letters, Vol. 35, Issue 9, pp. 1446-1448 (2010)
http://dx.doi.org/10.1364/OL.35.001446


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Abstract

We report a single-mode diode-pumped, passively mode-locked Cr:LiSAF laser with gigahertz (GHz) repetition rate and kilowatt peak power. A low-loss saturable Bragg reflector with low modulation depth and optimized dispersion compensation mirrors enables the generation of stable, cw mode-locked, sub- 100 - fs pulses at 1 GHz repetition rate around 865 nm when pumping with four or six laser diodes. Using a 0.25% output coupler and a total absorbed pump power of 0.9 W from six laser diodes, 55 fs, 110 pJ pulses are produced. This corresponds to 1.8 kW of peak power, which to our knowledge represents a record result for GHz Cr:colquiriite lasers.

© 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
(140.5680) Lasers and laser optics : Rare earth and transition metal solid-state lasers

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: February 2, 2010
Manuscript Accepted: February 22, 2010
Published: April 29, 2010

Citation
Duo Li, Umit Demirbas, Jonathan R. Birge, Gale S. Petrich, Leslie A. Kolodziejski, Alphan Sennaroglu, Franz X. Kärtner, and James G. Fujimoto, "Diode-pumped passively mode-locked GHz femtosecond Cr:LiSAF laser with kW peak power," Opt. Lett. 35, 1446-1448 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-9-1446

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