“…Noncritically phase-matched KTP optical parametric oscillators (OPOs) pumped by tunable Ti:sapphire lasers were also reported. By tuning the pump wavelength, a cw signal range of 1:05±1:37 lm and an idler range 2:2±3:1 lm were obtained [4]. Another implementation of noncritically phase-matched KTP OPO provided a pulsed signal range of 1:03±1:28 lm and an idler range of 2:18±3:03 lm [5].…”