Department of Physics, the State Key Laboratory on Fiber Optics Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
Opt Lett. 2010 Aug 15;35(16):2672-4. doi: 10.1364/OL.35.002672.
We experimentally demonstrate wavelength broadcast based on simultaneous Type I quasi-phase-matched (QPM) broadband sum-frequency generation (SFG) and second-harmonic generation (SHG) in 5 mol.% MgO-doped periodically poled lithium niobate (MgO:PPLN). One signal has been synchronously converted into seven different wavelengths using two pumps at a 1.5 microm band via quadratic cascaded nonlinear wavelength conversion. By selecting different pump regions, i.e., selecting different cascaded chi((2)):chi((2)) interactions, the flexible wavelength conversions with shifting from one signal to single, double, and triple channels were also demonstrated.
我们在 5mol%MgO 掺杂周期性极化铌酸锂（MgO:PPLN）中实验演示了基于同时的 I 类准相位匹配（QPM）宽带和频（SFG）和倍频（SHG）的波长广播。通过二次级联非线性波长转换，一个信号在 1.5 微米波段的两个泵浦下同步转换为七种不同的波长。通过选择不同的泵浦区域，即选择不同的级联 χ((2)): χ((2)) 相互作用，还演示了灵活的波长转换，从一个信号转换为单、双和三通道。
