Optimization of the idler wavelength tunable cascaded optical parametric oscillator based on chirp-assisted aperiodically poled lithium niobate crystal
Chen Tao†, , Shu Rong, Ge Ye, Chen Zhuo
       

(a) Temperature tuning ranges (dashed) and idler wavelength tuning ranges (dotted) each as a function of the value of chirp parameterC; (b)–(d) the relations between the idler wavelengths produced from the two nonlinear processes and the crystal temperature with specific chirp values: (b)C= 0 μm−2; (c)C= 1.4 × 10−9 μm−2; (d)C= 2.8 × 10−9 μm−2.