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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 28, Iss. 5 — May. 1, 2011
  • pp: 986–993

Femtosecond tuning of Cr:colquiriite lasers with AlGaAs-based saturable Bragg reflectors

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


JOSA B, Vol. 28, Issue 5, pp. 986-993 (2011)
http://dx.doi.org/10.1364/JOSAB.28.000986


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Abstract

We present a detailed experimental study of femtosecond tuning with Cr:LiSAF and Cr:LiCAF gain media using Al 0.95 Ga 0.05 As / Al 0.17 Ga 0.83 As -based saturable Bragg reflectors. In the experiments with Cr:LiSAF gain media, femtosecond tuning ranges of 803 831 nm ( 28 nm ), 828 873 nm ( 45 nm ) and 890 923 nm ( 33 nm ) were demonstrated using three different saturable Bragg reflectors with reflectivity bands centered at around 800, 850, and 910 nm , respectively. With Cr:LiCAF gain medium, a femtosecond tuning range of 767 817 nm ( 50 nm ) was demonstrated using the 800 nm saturable Bragg reflector. Pulses as short as 26 fs with Cr:LiSAF and 39 fs with Cr:LiCAF have been obtained, which we believe are the shortest pulses reported from Cr:colquiriite laser systems mode locked with saturable Bragg reflectors. This study further illustrates the benefits and limitations of Al 0.95 Ga 0.05 As / Al 0.17 Ga 0.83 As -based saturable Bragg reflectors for use in Cr:colquiriites.

© 2011 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
(140.3600) Lasers and laser optics : Lasers, tunable
(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: November 1, 2010
Revised Manuscript: February 16, 2011
Manuscript Accepted: February 17, 2011
Published: April 4, 2011

Citation
Umit Demirbas, Gale S. Petrich, Duo Li, Alphan Sennaroglu, Leslie A. Kolodziejski, Franz X. Kärtner, and James G. Fujimoto, "Femtosecond tuning of Cr:colquiriite lasers with AlGaAs-based saturable Bragg reflectors," J. Opt. Soc. Am. B 28, 986-993 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-5-986


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