Kartaloğlu, T.Köprülü, K. G.Aytür, O.Sundheimer, M.Risk, W. P.2016-02-082016-02-081998-01-010146-9592http://hdl.handle.net/11693/25516We report a femtosecond optical parametric oscillator based on a periodically poled KTiOPO4 crystal for which quasi-phase matching is achieved with a 24-μm poling period. The singly resonant parametric oscillator, synchronously pumped by a Ti:sapphire laser at a wavelength of 758 nm, generates a signal at 1200 nm and an idler at 2060 nm. The maximum signal power conversion efficiency of the device is 22% with a pump depletion of 69%. We tune the signal wavelength over a 200-nm band by changing the cavity length. In addition, pump wavelength tuning provides output tunability in the 1000-1235-nm range.EnglishLaser tuningLasersMirrorsPumping (laser)Femtosecond optical parametric oscillatorPump depletionParametric oscillatorsArticle10.1364/OL.23.000061