Theoretical studies on mode propagation and second harmonic generation in periodically poled MgO-doped LiNbO_(3) on an insulator(PPLNOI)rib waveguide are presented.With a special design,the waveguide can simultaneousl...Theoretical studies on mode propagation and second harmonic generation in periodically poled MgO-doped LiNbO_(3) on an insulator(PPLNOI)rib waveguide are presented.With a special design,the waveguide can simultaneously support the single-mode propagation of both a pump wave(1550 nm)and a second harmonic wave(775 nm).As a result of the strong confinement and intensive nonlinear effect in the PPLNOI rib waveguide,the calculated results indicate that a second-harmonic generation conversion efficiency of 400%W^(-1)·cm^(-2) can be achieved at a wavelength of 1550 nm,almost 2.6 times higher than the widely applied reverse proton-exchanged waveguide(150%W^(-1)·cm^(-2)).展开更多
基金Supported by the National High-Technology Research and Development Program of China under Grant No 2009AA03Z410。
文摘Theoretical studies on mode propagation and second harmonic generation in periodically poled MgO-doped LiNbO_(3) on an insulator(PPLNOI)rib waveguide are presented.With a special design,the waveguide can simultaneously support the single-mode propagation of both a pump wave(1550 nm)and a second harmonic wave(775 nm).As a result of the strong confinement and intensive nonlinear effect in the PPLNOI rib waveguide,the calculated results indicate that a second-harmonic generation conversion efficiency of 400%W^(-1)·cm^(-2) can be achieved at a wavelength of 1550 nm,almost 2.6 times higher than the widely applied reverse proton-exchanged waveguide(150%W^(-1)·cm^(-2)).
