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
, Shu Rong, Ge Ye, Chen Zhuo (a) Fourier coefficients of the OPO and DFG processes at ratios of OPO coefficient to DFG coefficient varying from 0.5 to 5; (b)–(d) pump-to-idler conversion efficiencies with respect to the pump pulse duration and ratio of OPO coefficient to DFG coefficient for different idler wavelength tuning ranges: (b) 0 nm; (c) 65 nm; (d) 135 nm; the color bars show the pump-to-idler conversion efficiencies for each subplot.
