Finite-Difference Time-Domain Analysis of Wavelength-Selective Characteristics in Weighted Acoustooptic Switches for Wavelength-Division-Multiplexed Photonic Routing
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概要
- 論文の詳細を見る
Waveguide-type acoustooptic (AO) switches can switch optical waves wavelength-selectively for wavelength-division-multiplexed (WDM) signals. The switches can be expected to be used in WDM photonic networks. In this paper, finite-difference time-domain (FDTD) analysis is presented for wavelength-selective switching with a collinear weighted AO device consisting of an optical directional coupler, input/output Y-branches and a tapered surface acoustic wave (SAW) waveguide. The FDTD simulated results are compared with the result from the coupled mode theory. It is shown that a sidelobe level as low as $-20$ dB in the filtering characteristics is realized by using weighted AO interaction. It is also shown that the sidelobe structure is affected by the characterisitcs of the input Y-branch.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-05-15
著者
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Goto Nobuo
Department Of Information And Computer Sciences Toyohashi University Of Technology:(present Office)d
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Goto Nobuo
Toyohashi University Of Technology Dept. Of Information & Computer Sciences
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Goto Nobuo
Department Of Electrical Engineering Faculty Of Engineering Nagoya University
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Miyazaki Yasumitsu
Deparment Of Information Engineering Toyohashi University Of Technology
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Goto Nobuo
Toyohashi Univ. Of Tech.
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Goto Nobuo
Department Of Information And Computer Sciences Toyohashi Luniversity Of Technology
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Goto Nobuo
Toyohashi University Of Technology Department Of Information And Computer Sciences
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Goto Nobuo
Department of Information and Computer Sciences, Toyohashi University of Technology
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