Glesk Ivan, Bock Przemek J, Cheben Pavel, Schmid Jens H, Lapointe Jean, Janz Siegfried
Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, UK.
Opt Express. 2011 Jul 18;19(15):14031-9. doi: 10.1364/OE.19.014031.
We report on the experimental demonstration of ultrafast all-optical switching and wavelength down-conversion based on a novel nonlinear Mach-Zehnder interferometer with subwavelength grating and wire waveguides. Unlike other periodic waveguides such as line-defects in a 2D photonic crystal lattice, a subwavelength grating waveguide confines the light as a conventional index-guided structure and does not exhibit optically resonant behaviour. Since the device had no dedicated port to input optical signal to control switching a new approach was also implemented for all-optical switching control.
我们报道了基于一种带有亚波长光栅和线波导的新型非线性马赫-曾德尔干涉仪的超快全光开关和波长下转换的实验演示。与其他周期性波导（如二维光子晶格中的线缺陷）不同，亚波长光栅波导像传统的折射率引导结构一样限制光，并且不表现出光学谐振行为。由于该器件没有专门用于输入光信号以控制开关的端口，因此还实施了一种用于全光开关控制的新方法。
