title: Femtosecond optical parametric oscillator based on periodically poled stoichiometric LiTaO3 crystal.
abstract: Efficient optical parametric oscillation is demonstrated in periodically poled stoichiometric lithium tantalate crystal pumped by a mode-locked Ti:sapphire laser. The optical parametric oscillator (OPO) delivers a maximum average power of more than 345 mW in signal and 180 mW in idler beams. The OPO is continuously tunable across the 940-1350 nm wavelength range in its signal branch, delivering nearly transform-limited 160-180 fs pulses. Despite the onset of high absorption loss in the crystal in the mid-IR, more than 40 mW of power is obtained for the idler beam tunable within the 4.3-4.6 microm wavelength range. The high parametric gain in the crystal allows tunable OPO operation at a repetition rate as high as 760 MHz with 50 mW of output power.
authors.affiliation: Department of Physics, West Virginia University, Morgantown, WV 26506, USA.
authors.forename: Kalyan V
authors.initials: KV
authors.lastname: Bhupathiraju
authors.forename: Andrew D
authors.initials: AD
authors.lastname: Seymour
authors.forename: Feruz
authors.initials: F
authors.lastname: Ganikhanov