Low-threshold femtosecond optical parametric oscillator based on chirped-pulse frequency conversion |
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| Authors: | Tillman K A Reid D T Artigas D Hellström J Pasiskevicius V Laurell F |
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| Institution: | Ultrafast Optics Group, Department of Physics, Heriot-Watt University, Riccarton, Edinburgh EH14 4AS, UK. |
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| Abstract: | We report what is to our knowledge the first demonstration of a femtosecond optical parametric oscillator based on chirped-pulse frequency conversion in a long crystal of aperiodically poled potassium titanyl phosphate. The minimum pump threshold power was 15 mW, and a signal slope efficiency of 35% was achieved. Continuous tuning from 1190 to 1450 nm was obtained for an average pump power of 800 mW. |
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