High power, widely tunable synchronously pumped fiber-based optical parametric oscillator

We demonstrate a synchronously pumped fiber optical parametric oscillator tunable from 795 nm to 860 nm. The FOPO operates in the normal dispersion regime and generates highly chirped pulses at the output allowing for significant pulse energy scaling without pulse breaking. The FOPO was able to generate up to 3.9 nJ pulses compressible to 173 fs by a photonic crystal fiber compressor.