Title :
Thermooptic switch based on photonic-crystal line-defect waveguides
Author :
Tao Chu ; Yamada, H. ; Ishida, S. ; Arakawa, Y.
Author_Institution :
Optoelectron. Ind. & Technol. Dev. Assoc., Ibaraki, Japan
Abstract :
A thermooptic switch with a symmetric Mach-Zehnder interferometer structure was demonstrated with silicon photonic-crystal-slab line-defect waveguides. The device size was as small as 160×65 μm. The optic switch operated at a wavelength of 1550 nm, and an extinction ratio greater than 30 dB was obtained by 120-mW heating (switching) power over the wavelength range of 15 nm. The switching on-off response times were about 120 μs.
Keywords :
Mach-Zehnder interferometers; elemental semiconductors; integrated optics; micro-optics; optical switches; optical waveguides; photonic crystals; silicon; thermo-optical devices; 120 mW; 120 mus; 1550 nm; 160 mum; 65 mum; Mach-Zehnder interferometer; extinction ratio; line-defect waveguides; optic switch; photonic-crystal waveguides; silicon photonic crystal; slab waveguides; symmetric interferometer; thermooptic switch; Optical device fabrication; Optical devices; Optical interferometry; Optical refraction; Optical ring resonators; Optical switches; Optical variables control; Optical waveguides; Photonic crystals; Silicon compounds; Integrated optics; Mach–Zehnder (MZ) interferometer; optical switches; photonic crystal (PhC); photonic switching systems; thermooptic effects;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.856357
