Fig. 1. Schematic diagram of experimental setup

Fig. 2. (a) Signal and (b) idler output power as a function of pump power for different repetition frequencies (MgO: PPLN: 30.47 μm)

Fig. 3. Tuning range of output wavelength. (a) Signal; (b) Idler

Fig. 4. Output wavelength tuning curve(T=25 ℃)

Fig. 5. Pulse profile of (a) pump and (b) signal (MgO: PPLN: 30.47 μm)