Low-cost, single-mode diode-pumped Cr:Colquiriite lasers
Author(s)Demirbas, Umit; Li, Duo; Birge, Jonathan R.; Sennaroglu, Alphan; Petrich, Gale S.; Kolodziejski, Leslie A.; Kaertner, Franz X.; Fujimoto, James G.; ... Show more Show less
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We present three Cr[superscript 3+]: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.
DepartmentLincoln Laboratory; Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Research Laboratory of Electronics
Optical Society of America
Demirbas, Umit, 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.” Optics Express 17, no. 16 (August 3, 2009): 14374. © 2009 Optical Society of America
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