Few-cycle near-infrared pulses from a degenerate 1 GHz optical parametric oscillator.


We report the generation of transform-limited 4.3-cycle (23 fs) pulses at 1.6 μm from a degenerate doubly resonant optical parametric oscillator (OPO) pumped by a 1 GHz mode-locked Ti:sapphire laser. A χ(2) nonlinear envelope equation was used to inform the experimental implementation of intracavity group-delay dispersion compensation, resulting in resonant… (More)
DOI: 10.1364/OL.40.004102


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