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Opt Lett. 2004 Nov 15;29(22):2638-40.

Diode pumping of a continuous-wave Pr3+-doped LiYF4 laser.

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  • 1University of Hamburg, Institute of Laser-Physics, Luruper Chaussee 149, D-22761 Hamburg, Germany.


We report, for the first time to our knowledge, diode-pumped cw laser oscillation of Pr3+:LiYF4 in the red spectral range. The pump power is provided by a GaN laser diode emitting a maximum output power of 25 mW at a wavelength of approximately 442 nm. The Pr3+ laser emits 1.8 mW of output power at a 639.7-nm wavelength. Threshold pump power and slope efficiency in a nonoptimized setup are determined to be 5.5 mW and 24%, respectively.

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