| Presentation | 2007-08-24 Optical Fiber Design for Brillouin-Scattering-Based Discriminative Sensing of Strain and Temperature Weiwen Zou, Zuyuan He, Kazuo Hotate, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We demonstrate the theoretical analysis of Brillouin gain spectra (BGS) in high-delta fibers with F-doped inner claddings under different fiber parameters such as the radii (core, a_1 ; inner cladding, a_2) and the dopant concentrations (core, w_1 ; inner cladding, w_2). We found that it is possible to move a high-order acoustic mode (L_<02> or L_<03>) into the inner-cladding region while the fundamental mode L_<01> is maintained in the core region. Furthermore, we numerically evaluate the different acoustic modes' resonance frequencies and their gain differences as functions of fiber parameters for the two different possibilities : using L_<01> and L_<02> modes or using L_<01> and L_<03> modes for the purpose of Brillouin-scattering-based discriminative sensing of strain and temperature. The latter possible application is estimated more suitable because the L_<03> mode has a comparable gain coefficient in contrast to L_<01> mode and the resonance frequency of L_<03> mode is ～6 times more sensitive to the change of fiber's parameters than that of the L_<01> mode. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | stimulated Brillouin scattering / fiber-optic sensors / optical fibers / discriminative measurement / optical fiber design |
| Paper # | OFT2007-30 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2007/8/16(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Optical Fiber Technology (OFT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optical Fiber Design for Brillouin-Scattering-Based Discriminative Sensing of Strain and Temperature |
| Sub Title (in English) | |
| Keyword(1) | stimulated Brillouin scattering |
| Keyword(2) | fiber-optic sensors |
| Keyword(3) | optical fibers |
| Keyword(4) | discriminative measurement |
| Keyword(5) | optical fiber design |
| 1st Author's Name | Weiwen Zou |
| 1st Author's Affiliation | Department of Electronic Engineering, The University of Tokyo() |
| 2nd Author's Name | Zuyuan He |
| 2nd Author's Affiliation | Department of Electronic Engineering, The University of Tokyo |
| 3rd Author's Name | Kazuo Hotate |
| 3rd Author's Affiliation | Department of Electronic Engineering, The University of Tokyo |
| Date | 2007-08-24 |
| Paper # | OFT2007-30 |
| Volume (vol) | vol.107 |
| Number (no) | 191 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |