Low Threshold, High Repetition Frequency, Femtosecond Optical Parametric Oscillator Based on Chirped-Pulse Frequency Conversion

摘要

We report the first demonstration of a femtosecond optical parametric oscillator based on chirped-pulse frequency conversion in a long crystal of aperi-odically poled potassium titanyl phosphate. The minimum pump threshold power was 14.4 mW and a signal slope efficiency of 35% was achieved. Continuous tuning from 1194-1455 nm was obtained for an average pump power of 750 mW.