Fabrication and characterization of photonic crystal-based symmetric Mach-Zehnder (PC-SMZ) structures based on GaAs membrane slab waveguides

We have experimentally demonstrated two- dimensional (2-D) photonic crystal (PC) waveguides (WGs) such as straight, bent, Y-branch, directional coupler (DC), and quantum dots (QDs)-based nonlinear optical (NLO) WGs using a GaAs air-bridge membrane with triangular-lattice line-defect WGs. These WGs a...

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Bibliographic Details
Published in:IEEE journal on selected areas in communications 2005-07, Vol.23 (7), p.1308-1314
Main Authors: Sugimoto, Y., Tanaka, Y., Ikeda, N., Nakamura, H., Kanamoto, K., Ohkouchi, S., Watanabe, Y., Inoue, K., Asakawa, K.
Format: Article
Language:English
Subjects:
Biomembranes
Direct current
Directional couplers
Gallium arsenide
Gallium arsenides
Membranes
Nonlinear optical (NLO) waveguide
Nonlinear optics
Optical device fabrication
optical integrated circuit
Optical waveguides
Phase shift
Photonic crystals
photonic crystals (PCs)
Photonics
quantum dot (QD)
Quantum dots
slab waveguide
Slabs
Ultrafast optics
Waveguides
Yttrium
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Summary:We have experimentally demonstrated two- dimensional (2-D) photonic crystal (PC) waveguides (WGs) such as straight, bent, Y-branch, directional coupler (DC), and quantum dots (QDs)-based nonlinear optical (NLO) WGs using a GaAs air-bridge membrane with triangular-lattice line-defect WGs. These WGs are necessary for a 2-D PC-based symmetric Mach-Zehnder (PC-SMZ) type ultrafast all-optical switch. Experimental results on the clear observation of the optical interference at the Y-junction DC, nonlinearity-induced phase shift at the NLO waveguide, and transmission spectra in the total PC-SMZ WG configuration will be addressed, as well as measured results on each WG element.
ISSN:0733-8716
1558-0008
DOI:10.1109/JSAC.2005.851219