Abstract

We demonstrate a high-power two-color femtosecond near-infrared optical parametric oscillator synchronously pumped by a $7.4\mathrm{W}$ femtosecond Yb:KGW laser. This system is almost gap-free tunable with signal wavelengths ranging between 1445 and $1880\mathrm{nm}$, with up to $1.7\mathrm{W}$ 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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