1-GHz-repetition-rate femtosecond optical parametric oscillator

Zhang, X. P.; Hebling, J.; Bartels, A.; Nau, D.; Kuhl, J.; Ru¨hle, W. W.; Giessen, H.
March 2002
Applied Physics Letters;3/18/2002, Vol. 80 Issue 11, p1873
Academic Journal
We report a 1-GHz-repetition-rate, low-pump-threshold, all-solid-state femtosecond optical parametric oscillator (OPO) based on periodically poled LiNbO[sub 3] and pumped by a GHz repetition rate Ti:sapphire laser. The OPO provides nearly transform-limited 65-fs-signal pulses tunable from 1160 to 1320 nm. The pump threshold is about 580 mW, and 43 mW signal power is obtained with 950-mW-pump power. Higher-order quasi-phase-matched sum frequency generation and second harmonic generation processes produce 10 mW blue light at 486 nm and 15 mW red light at 620 nm.


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