Mid-infrared picosecond optical parametric oscillator based on periodically poled RbTiOAsO/sub 4/

Summary form only given. The advent of quasi-phase-matched (QPM) nonlinear materials such as periodically poled LiNbO/sub 3/ (PPLN) has provided valuable additions to the existing birefringent materials for use in ultrafast OPOs. In particular, the potential of PPLN for use in a Ti:sapphire-pumped picosecond OPO for the 1- to 2.5-/spl mu/m region was recently demonstrated. We have now extended the operation of these devices into the mid-infrared by exploiting the new QPM nonlinear material periodically poled RbTiOAsO/sub 4/.