Abstract

We demonstrate a high-power two-color femtosecond near-infrared optical parametric oscillator synchronously pumped by a 7.4W femtosecond Yb:KGW laser. This system is almost gap-free tunable with signal wavelengths ranging between 1445 and 1880nm, with up to 1.7W average signal output power at femtosecond pulse durations. At wavelengths near the point at which the cavity group-delay dispersion equals zero, dual-signal-wavelength operation occurs due to equal group delay at two wavelengths.

© 2011 Optical Society of America

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