Sub-50 fs pulses around 2070 nm from a synchronously-pumped, degenerate OPO

Charles W. Rudy, Alireza Marandi, Kirk A. Ingold, Stephen J. Wolf, Konstantin L. Vodopyanov, Robert L. Byer, Lihmei Yang, Peng Wan, Jian Liu
2012 Optics Express  
We report generation of 48 fs pulses at a center wavelength of 2070 nm using a degenerate optical parametric oscillator (OPO) synchronously-pumped with a commercially available 36-MHz, femtosecond, mode-locked, Yb-doped fiber laser. The spectral bandwidth of the output is ~137 nm, corresponding to a theoretical, transform-limited pulse width of 33 fs. The threshold of the OPO is less than 10 mW of average pump power. By tuning the cavity length, the output spectrum covers a spectral width of
more » ... pectral width of more than 400 nm, limited only by the bandwidth of the cavity mirrors.
doi:10.1364/oe.20.027589 pmid:23262708 fatcat:gf7kkpleurbadghfxfpaszcvfu