Novel Distributed Fiber-Optic Strain Sensor by Localizing Dynamic Grating in Polarization-Maintaining Erbium-Doped Fiber: Proposal and Theoretical Analysis
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概要
- 論文の詳細を見る
A novel scheme of distributed fiber-optic strain sensor by localizing a dynamic grating in a polarization-maintaining erbium-doped fiber is proposed. The dynamic grating, which is introduced by launching two counterpropagating coherent light beams into a pumped erbium-doped fiber per gain saturation, is examined. A theoretical model of the dynamic grating is given and used to perform simulations of the reflectivity of the dynamic grating localized by synthesizing the optical coherence function. Theoretical analysis and numerical simulation of the novel sensor scheme show that the Bragg frequency of the dynamic grating will shift according by 0.426 MHz/$\mu\varepsilon$ to strain in a typical polarization-maintaining erbium-doped fiber.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2005-02-15
著者
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Hotate Kazuo
Department Of Elctronic Engineering School Of Engineering The University Of Tokyo
-
He Zuyuan
Department Of Electrical Engineering And Information System School Of Engineering The University Of
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He Z
Univ. Tokyo Tokyo Jpn
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Fan Xinyu
Department of Electronic Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8685, J
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Fan Xinyu
Department Of Electronic Engineering University Of Tokyo
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