Abstract
We report a femtosecond optical parametric oscillator (OPO) based on the nonlinear material . The OPO is synchronously pumped in the blue by the second harmonic of a Kerr-lens-mode-locked Ti:sapphire laser. It can provide wide and continuous tuning across the entire green–yellow–orange–red spectral range with a single crystal and a single set of mirrors. Using a crystal and collinear type I phase matching in the optical plane, a signal wavelength range of is demonstrated with angle tuning at room temperature at average output powers of . With blue pump pulses, near-transform-limited signal pulses of duration have been obtained at repetition rate.
© 2006 Optical Society of America
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