Diode-pumped continuous-wave and femtosecond Cr:LiCAF lasers with high average power in the near infrared, visible and near ultraviolet

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2015
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Baali, Ilyes
Acar, Durmus Alp Emre
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Optics Express. 2015, 23(7), pp. 8901-8909. eISSN 1094-4087. Available under: doi: 10.1364/OE.23.008901
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We demonstrate continuous-wave (cw), cw frequency-doubled, cw mode-locked and Q-switched mode-locked operation of multimode diode-pumped Cr:LiCAF lasers with record average powers. Up to 2.54 W of cw output is obtained around 805 nm at an absorbed pump power of 5.5 W. Using intracavity frequency doubling with a BBO crystal, 0.9 W are generated around 402 nm, corresponding to an optical-to-optical conversion efficiency of 12%. With an intracavity birefringent tuning plate, the fundamental and frequency-doubled laser output is tuned continuously in a broad wavelength range from 745 nm to 885 nm and from 375 to 440 nm, respectively. A saturable Bragg reflector is used to initiate and sustain mode locking. In the cw mode-locked regime, the Cr:LiCAF laser produces 105-fs long pulses near 810 nm with an average power of 0.75 W. The repetition rate is 96.4 MHz, resulting in pulse energies of 7.7 nJ and peak powers of 65 kW. In Q-switched mode-locked operation, pulses with energies above 150 nJ are generated.

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ISO 690DEMIRBAS, Umit, Ilyes BAALI, Durmus Alp Emre ACAR, Alfred LEITENSTORFER, 2015. Diode-pumped continuous-wave and femtosecond Cr:LiCAF lasers with high average power in the near infrared, visible and near ultraviolet. In: Optics Express. 2015, 23(7), pp. 8901-8909. eISSN 1094-4087. Available under: doi: 10.1364/OE.23.008901
BibTex
@article{Demirbas2015Diode-31404,
  year={2015},
  doi={10.1364/OE.23.008901},
  title={Diode-pumped continuous-wave and femtosecond Cr:LiCAF lasers with high average power in the near infrared, visible and near ultraviolet},
  number={7},
  volume={23},
  journal={Optics Express},
  pages={8901--8909},
  author={Demirbas, Umit and Baali, Ilyes and Acar, Durmus Alp Emre and Leitenstorfer, Alfred}
}
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