期刊
OPTICS EXPRESS
卷 19, 期 15, 页码 14031-14039出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.19.014031
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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. (C)2011 Optical Society of America
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