| Presentation | 2007-05-25 Novel optical frequency domain reflectometry with measurement range beyond laser coherence length by using concatenative reference method Xinyu Fan, Yusuke Koshikiya, Fumihiko Ito, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Coherent optical frequency domain reflectometry (C-OFDR) shows promise as a powerful tool for the maintenance of optical access networks. For this application, the most important parameters are spatial resolution and measurement range. To obtain a narrow spatial resolution together with a long measurement range, we need a laser with both a broad tunable range and a narrow linewidth to give us a long coherence length. Nowadays, laser diodes (LD) are commercially available that have a broad tunable wavelength range, and a spatial resolution of 22μm has been realized. To extend the measurement range to several kilometers while maintaining a narrow spatial resolution, we must solve the problem of laser coherence length limitation. In this paper, we will propose a novel method based on C-OFDR with a measurement range beyond laser coherence length by using concatenative reference method, which generates concatenative reference signal from an auxiliary interferometer. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical frequency domain reflectometry (OFDR) / concatenative reference method / coherence length |
| Paper # | OFT2007-13 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2007/5/17(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) | Novel optical frequency domain reflectometry with measurement range beyond laser coherence length by using concatenative reference method |
| Sub Title (in English) | |
| Keyword(1) | optical frequency domain reflectometry (OFDR) |
| Keyword(2) | concatenative reference method |
| Keyword(3) | coherence length |
| 1st Author's Name | Xinyu Fan |
| 1st Author's Affiliation | NTT Access Network Service Systems Laboratories() |
| 2nd Author's Name | Yusuke Koshikiya |
| 2nd Author's Affiliation | NTT Access Network Service Systems Laboratories |
| 3rd Author's Name | Fumihiko Ito |
| 3rd Author's Affiliation | NTT Access Network Service Systems Laboratories |
| Date | 2007-05-25 |
| Paper # | OFT2007-13 |
| Volume (vol) | vol.107 |
| Number (no) | 52 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |