Ultrashort pulse generation by internal pulse compression of synchronously pumped optical parametric oscillators at degeneracy

Abstract

Synchronously pumped cw mode locked optical parametric oscillators (OPO) are ideal sources for tunable ultrashort pulses in the visible and near infrared spectral region. They can be tuned over a wide wavelength range and picosecond and sub-picosecond pulses have been obtained already with substantial average and peak powers [1,2].