Presentation | 2007-08-24 Optical Fiber Design for Brillouin-Scattering-Based Discriminative Sensing of Strain and Temperature Weiwen Zou, Zuyuan He, Kazuo Hotate, |
---|---|
PDF Download Page | PDF download Page Link |
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 |
Date of Issue |
Conference Information | |
Committee | OFT |
---|---|
Conference Date | 2007/8/16(1days) |
Place (in Japanese) | (See Japanese page) |
Place (in English) | |
Topics (in Japanese) | (See Japanese page) |
Topics (in English) | |
Chair | |
Vice Chair | |
Secretary | |
Assistant |
Paper Information | |
Registration To | Optical Fiber Technology (OFT) |
---|---|
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 |