| Presentation | 2016-02-19 Measurement of ring circumferential strain based on shape model of Brillouin gain spectrum Hiroshi Naruse, Takeshi Ogawa, Takanori Nishino, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We present a method for measuring the strain formed in a circumferential direction in ring structures; this method is based on the strain dependence of the Brillouin gain (BG) spectrum frequency shift. The BG spectra produced in an optical fiber installed on the ring circumference are distributedly observed; the strain is then obtained by fitting the model to the observed BG spectra. This model comprises parameters related to the basic properties of the BGS shape and strain dependence of the frequency shift, BGS observation conditions, and the ring circumferential strain. Because the strain is given by a periodic function of period 2$pi$ in the same cross-section, the strain is described by Fourier descriptors in the model. The suitability of this method is confirmed by simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical fiber / Brillouin gain spectrum / model / strain / ring / Fourie coefficient |
| Paper # | OFT2015-67,OPE2015-232 |
| Date of Issue | 2016-02-11 (OFT, OPE) |
| Conference Information | |
| Committee | OFT / OCS / OPE |
|---|---|
| Conference Date | 2016/2/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hiroshi Naruse(Mie Univ.) / Kiyoshi Fukuchi(NEC) / Hiroyuki Uenohara(Tokyo Inst. of Tech.) |
| Vice Chair | / Akira Hirano(NTT) / Kensuke Ogawa(Fujikura) |
| Secretary | (NTT) / Akira Hirano(Fujikura) / Kensuke Ogawa(Fujikura) |
| Assistant | Terutake Kobayashi(Fujikura) / Hidenobu Hirota(NTT) / / Takaaki Ishigure(Keio Univ.) / Eiji Yagyu(Mitsubishi Electric) |
| Paper Information | |
| Registration To | Technical Committee on Optical Fiber Technology / Technical Committee on Optical Communication Systems / Technical Committee on Optoelectronics |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement of ring circumferential strain based on shape model of Brillouin gain spectrum |
| Sub Title (in English) | |
| Keyword(1) | optical fiber |
| Keyword(2) | Brillouin gain spectrum |
| Keyword(3) | model |
| Keyword(4) | strain |
| Keyword(5) | ring |
| Keyword(6) | Fourie coefficient |
| 1st Author's Name | Hiroshi Naruse |
| 1st Author's Affiliation | Mie University(Mie Univ.) |
| 2nd Author's Name | Takeshi Ogawa |
| 2nd Author's Affiliation | Mie University(Mie Univ.) |
| 3rd Author's Name | Takanori Nishino |
| 3rd Author's Affiliation | Mie University(Mie Univ.) |
| Date | 2016-02-19 |
| Paper # | OFT2015-67,OPE2015-232 |
| Volume (vol) | vol.115 |
| Number (no) | OFT-452,OPE-453 |
| Page | pp.pp.67-71(OFT), pp.93-97(OPE), |
| #Pages | 5 |
| Date of Issue | 2016-02-11 (OFT, OPE) |