| Presentation | 2000/7/20 Rayleigh scattering reduction method for optical fiber Kyozo Tsujikawa, Katsusuke Tajima, Masaharu Ohashi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The effect of the thermal treatment of silica-based glasses and glass fibers on their Rayleigh scattering is investigated experimentally. The Rayleigh scattering coefficients of bulk glasses are found to be increased 5～10% by heating them to 1800℃ because the density fluctuation is in proportion to their fictive temperature. Based on these results, we propose a method for reducing the Rayleigh scattering losses of silica-based optical fibers by drawing them slowly at low temperatures. We used this method to obtain a GeO_2 doped silica core single-mode fiber with a minimum loss of 0.16 dB/km at 1.55μm. As a result, we confirmed that the reduction in the fictive temperature of silica-based glasses and glass fibers has an effect on reducing their Rayleigh scattering. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Rayleigh scattering / loss reduction / optical fiber / fictive temperature / drawing temperature / drawing speed. |
| Paper # | OCS2000-25,PS2000-9,OFT2000-21 |
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| Conference Information | |
| Committee | OCS |
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| Conference Date | 2000/7/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Optical Communication Systems (OCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Rayleigh scattering reduction method for optical fiber |
| Sub Title (in English) | |
| Keyword(1) | Rayleigh scattering |
| Keyword(2) | loss reduction |
| Keyword(3) | optical fiber |
| Keyword(4) | fictive temperature |
| Keyword(5) | drawing temperature |
| Keyword(6) | drawing speed. |
| 1st Author's Name | Kyozo Tsujikawa |
| 1st Author's Affiliation | NTT Access Network Service Systems Laboratories() |
| 2nd Author's Name | Katsusuke Tajima |
| 2nd Author's Affiliation | NTT Access Network Service Systems Laboratories |
| 3rd Author's Name | Masaharu Ohashi |
| 3rd Author's Affiliation | NTT Access Network Service Systems Laboratories |
| Date | 2000/7/20 |
| Paper # | OCS2000-25,PS2000-9,OFT2000-21 |
| Volume (vol) | vol.100 |
| Number (no) | 229 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |