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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 16 — Aug. 3, 2009
  • pp: 14374–14388

Low-cost, single-mode diode-pumped Cr:Colquiriite lasers

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

Optics Express, Vol. 17, Issue 16, pp. 14374-14388 (2009)

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We present three Cr3+:Colquiriite lasers as low-cost alternatives to Ti:Sapphire laser technology. Single-mode laser diodes, which cost only $150 each, were used as pump sources. In cw operation, with ~520 mW of absorbed pump power, up to 257, 269 and 266 mW of output power and slope efficiencies of 53%, 62% and 54% were demonstrated for Cr:LiSAF, Cr:LiSGaF and Cr:LiCAF, respectively. Record cw tuning ranges from 782 to 1042 nm for Cr:LiSAF, 777 to 977 nm for Cr:LiSGaF, and 754 to 871 nm for Cr:LiCAF were demonstrated. In cw mode-locking experiments using semiconductor saturable absorber mirrors at 800 and 850 nm, Cr:Colquiriite lasers produced ~50–100 fs pulses with ~1-2.5 nJ pulse energies at ~100 MHz repetition rate. Electrical-to-optical conversion efficiencies of 8% in mode-locked operation and 12% in cw operation were achieved.

© 2009 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

Original Manuscript: June 16, 2009
Revised Manuscript: July 19, 2009
Manuscript Accepted: July 24, 2009
Published: July 31, 2009

Umit Demirbas, Duo Li, Jonathan R. Birge, Alphan Sennaroglu, Gale S. Petrich, Leslie A. Kolodziejski, Franz X. Kaertner, and James G. Fujimoto, "Low-cost, single-mode diode-pumped Cr:Colquiriite lasers," Opt. Express 17, 14374-14388 (2009)

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