Fabrication and characterization of photonic crystal based symmetric Mach-Zehnder (PC-SMZ) structures toward ultra-small all-optical switching devices

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 (ON...

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Bibliographic Details
Main Authors: Sugimoto, Y., Asakawa, K.
Format: Conference Proceeding
Language:English
Subjects:
Directional couplers
Fabrication
Gallium arsenide
Nonlinear optical devices
Nonlinear optics
Optical switches
Optical waveguides
Photonic crystals
Quantum dots
Ultrafast optics
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Summary: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.
DOI:10.1109/ICTON.2004.1360295