Title :
Fabrication and characterization of photonic crystal based symmetric Mach-Zehnder (PC-SMZ) structures toward ultra-small all-optical switching devices
Author :
Sugimoto, Yoshimasa ; Asakawa, Kiyoshi
Author_Institution :
Femtosecond Technol. Res. Assoc., Tsukuba, Japan
Abstract :
We have experimentally demonstrated two-dimensional (2D) photonic crystal (PC) waveguides (WG) necessary for a 2D PC-based symmetric Mach-Zehnder (PC-SMZ) type ultrafast all-optical switch such as straight WG, bent, Y-branch, directional coupler (DC) and quantum dots (QD)-based optical nonlinear (ONL) WG, using a GaAs air-bridge membrane with triangular-lattice line-defect WG. Experimental results on the successful optical interference at the Y-junction DC, nonlinearity-induced phase shift at the ONL waveguide, and transmission spectra in the total PC-SMZ WG configuration are addressed as well as measured results on each WG element.
Keywords :
gallium arsenide; high-speed optical techniques; light interference; nonlinear optics; optical directional couplers; optical switches; optical waveguides; photonic crystals; quantum dots; 2D photonic crystal waveguides; GaAs; GaAs air-bridge membrane; PC-SMZ; Y-branch WG; Y-junction DC; all-optical switching devices; bent WG; directional coupler; nonlinearity-induced phase shift; optical interference; photonic crystal based symmetric Mach-Zehnder structures; quantum dots-based optical nonlinear WG; straight WG; transmission spectra; triangular-lattice line-defect WG; two-dimensional photonic crystal waveguides; ultra-small switching devices; ultrafast all-optical switch; Directional couplers; Fabrication; Gallium arsenide; Nonlinear optical devices; Nonlinear optics; Optical switches; Optical waveguides; Photonic crystals; Quantum dots; Ultrafast optics;
Conference_Titel :
Transparent Optical Networks, 2004. Proceedings of 2004 6th International Conference on
Print_ISBN :
0-7803-8343-5
DOI :
10.1109/ICTON.2004.1360295
