Flattening of cascaded sum- and difference-frequency generation-based wavelength conversion by pump or period detuning
Shiming Gao, Changxi Yang, Xiaosheng Xiao +3 more
We investigate response flatting of cascaded sum- and difference- frequency generation (SFG/DFG)-based wavelength conversion in quasi-phase-matched (QPM) periodically poled lithium niobate waveguides for wavelength division multiplexing optical communication systems. The cascaded SFG/DFG-based configuration shows more robustly combined properties than conventional DFG-based and cascaded second-harmonic generation and DFG (SHG/DFG)-based configurations. The response fluctuation, generated while enhancing the conversion bandwidth, can be efficiently reduced by the method of pump detuning or QPM period detuning.
Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Nov 24, 2005•0 citations