Ti:sapphire-pumped solid state source of high-repetition-rate femtosecond pulses tunable in the visible

Randy J. Ellingson; Chung Liang Tang

doi:10.1117/12.175838

16 May 1994 Ti:sapphire-pumped solid state source of high-repetition-rate femtosecond pulses tunable in the visible

Randy J. Ellingson, Chung Liang Tang

Proceedings Volume 2116, Generation, Amplification, and Measurement of Ultrashort Laser Pulses; (1994) https://doi.org/10.1117/12.175838
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

We report on the generation of high-power, high-repetition-rate femtosecond pulses tunable in the visible by intracavity frequency-doubling of a KTiOPO₄ (KTP) femtosecond optical parametric oscillator (OPO). The KTP OPO is synchronously pumped by a self-modelocked Ti:sapphire laser producing pulses of 225 kW peak power at a repetition rate of 81 MHz (115 fs pulsewidth), and a center wavelength of 790 nm. Using a 1.5 mm thick KTP gain crystal and a 50 micrometers (beta) -BaB₂O₄ frequency-doubling crystal, we achieve up to 240 mW of sub-100 femtosecond pulses tunable in the range of 580 to 660 nm. The potential tuning range of the frequency-doubled KTP OPO, when pumped at 790 nm, is approximately 500 to 750 nm.

Citation Download Citation

Randy J. Ellingson and Chung Liang Tang "Ti:sapphire-pumped solid state source of high-repetition-rate femtosecond pulses tunable in the visible", Proc. SPIE 2116, Generation, Amplification, and Measurement of Ultrashort Laser Pulses, (16 May 1994); https://doi.org/10.1117/12.175838

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