We propose a type of all-optical switch which consists of two periodically modulated nonlinear optical waveguides placed in parallel. Compared to the all-optical switch based on the traditional nonlinear directional coupler without periodic modulation, this all-optical switch has much lower switching threshold power and sharper switching width.
© 2010 Optical Society of America
Original Manuscript: November 3, 2009
Revised Manuscript: December 21, 2009
Manuscript Accepted: December 22, 2009
Published: January 25, 2010
Qiongtao Xie, Xiaobing Luo, and Biao Wu, "All-optical switch with two periodically modulated nonlinear waveguides," Opt. Lett. 35, 321-323 (2010)