| Presentation | 2001/9/28 Development of Refractive-Index-Profile Measurement Technique For Optical Fiber Preforms Fujio Katou, Issei Sasaki, Shingo Okazaki, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The measurement of refractive index profile in optical fiber preforms is important in fiber industry to evaluate characteristics of optical fibers. This report presents a new method uses image distortion analysis for determining the ray deflection, which the index profiles can be numerically converted from. A reference pattern is located behind of the sample preform and distortion in its image taken through the preform may be observed if a distribution of refractive index exists in it. In previous report, a static angled knife-edge as reference pattern was used and then sample is restricted within axial-dependence free profiles. For applying the technique to wide range of types of preform, we introduce straight, scanning knife-edge. In order to confirm the method, we construct a test system and perform trial measurements using a tip taken near the end of the preform. The results show a good agreement to result obtained from strait part of the same preform without effect of the axially depending structure. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical fiber preform / Index profile measurement / Scanning knife-edge method |
| Paper # | OFT2001-38 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2001/9/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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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) | Development of Refractive-Index-Profile Measurement Technique For Optical Fiber Preforms |
| Sub Title (in English) | |
| Keyword(1) | Optical fiber preform |
| Keyword(2) | Index profile measurement |
| Keyword(3) | Scanning knife-edge method |
| 1st Author's Name | Fujio Katou |
| 1st Author's Affiliation | Hokkaido Institute of Technology() |
| 2nd Author's Name | Issei Sasaki |
| 2nd Author's Affiliation | Hokkaido Institute of Technology:Advanced Technology Inc. |
| 3rd Author's Name | Shingo Okazaki |
| 3rd Author's Affiliation | SEIKO EG&G |
| Date | 2001/9/28 |
| Paper # | OFT2001-38 |
| Volume (vol) | vol.101 |
| Number (no) | 330 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |