CONTINUOUS-WAVE, SINGLY RESONANT, INTRACAVITY PARAMETRIC OSCILLATOR

Performance characteristics of a continuous-wave intracavity optical p arametric oscillator are described by use of an experimental arrangeme nt comprising a KTP singly resonant oscillator located within a Ti:sap phire laser cavity and analysed by use of a steady-state model. Intern al and external powers, circulating fields, tuning ranges, spectral ba ndwidths, and amplitude-stability levels are measured and discussed. T he nonresonant idler tunes from 2.53 to 2.87 mu m, delivers a maximum output power of approximate to 0.4 W and displays long-term amplitude- stable operation. The total downconverted power approaches the optimum power coupled out of the Ti:sapphire laser in the absence of frequenc y conversion.