| Presentation | 2002/11/22 Parabolic Strain Distribution Dependence of the Brillouin Gain Spectrum Shape Hiroshi NARUSE, Mitsuhiro TATEDA, Hiroshige OHNO, Akiyoshi SHIMADA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For an OTDR (Optical Time Domain reflectometer) type strain measurement system, we derive theoretically the shape of the Brillouin gain spectrum produced in an optical fiber with a parabolic-shaped strain distribution in the fiber length direction. The parabolic strain distribution is formed in a beam to which a uniformly distributed load is applied, and it is as fundamental as a linear strain distribution. Based on the derived result, we investigate the effects of measurement conditions such as the launched pulse width and the measurement position on the beam and the second-order coefficient of the quadratic function, which is the parabolic strain distribution parameter, on the deformation of the Brillouin gain spectrum shape. In addition, we investigate numerically the relationship between strains actually produced and obtained by the system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Brillouin scattering / parabolic strain distribution / strain measurement / power spectrum |
| Paper # | OFT2002-65 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2002/11/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Fiber Technology (OFT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Parabolic Strain Distribution Dependence of the Brillouin Gain Spectrum Shape |
| Sub Title (in English) | |
| Keyword(1) | Brillouin scattering |
| Keyword(2) | parabolic strain distribution |
| Keyword(3) | strain measurement |
| Keyword(4) | power spectrum |
| 1st Author's Name | Hiroshi NARUSE |
| 1st Author's Affiliation | NTT Access Network Service Systems Laboratories() |
| 2nd Author's Name | Mitsuhiro TATEDA |
| 2nd Author's Affiliation | Faculty of Engineering, Chiba University |
| 3rd Author's Name | Hiroshige OHNO |
| 3rd Author's Affiliation | NTT Access Network Service Systems Laboratories |
| 4th Author's Name | Akiyoshi SHIMADA |
| 4th Author's Affiliation | NTT Access Network Service Systems Laboratories |
| Date | 2002/11/22 |
| Paper # | OFT2002-65 |
| Volume (vol) | vol.102 |
| Number (no) | 485 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |