| Presentation | 2016-08-26 Mode field diameter of LP11 mode for estimating coupling efficiencies at a splice and its measurement technique Atsushi Nakamura, Keiji Okamoto, Yusuke Koshikiya, Tetsuya Manabe, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In mode division multiplexing transmission using few-mode fibers (FMFs), the losses and mode crosstalk that occur at splices are key issues, since they degrade the transmission performance. Therefore, it is essential when designing a system to be able to estimate the splice losses and mode crosstalk at a splice, i.e. coupling efficiencies at a splice, analytically before installing FMFs in the field. In this paper, we propose an effective mode field diameter (MFD) for the second-order (LP11) mode to estimate the coupling efficiencies in two-mode fibers (TMFs). Simulations are performed to verify the estimation validity. In addition, we propose a novel technique based on optical time domain reflectometry (OTDR) to measure the effective MFD distribution along TMFs. Its feasibility is demonstrated experimentally. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Mode field diameter / higher-order mode / splice loss / mode crosstalk / optical time domain reflectometry |
| Paper # | OFT2016-12 |
| Date of Issue | 2016-08-18 (OFT) |
| Conference Information | |
| Committee | OCS / OFT / LSJ |
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| Conference Date | 2016/8/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Chitose-alcadia plaza |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Akira Hirano(NTT) / Masayuki Shigematsu(Sumitomo Electric Industries) |
| Vice Chair | Itsuro Morita(KDDI R&D Labs.) |
| Secretary | Itsuro Morita(NTT) / (Sumitomo Electric Industries) / (NTT) |
| Assistant | / Terutake Kobayashi(Fujikura) / IKutaro Ogushi(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Optical Communication Systems / Technical Committee on Optical Fiber Technology / The Laser Society of Japan |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Mode field diameter of LP11 mode for estimating coupling efficiencies at a splice and its measurement technique |
| Sub Title (in English) | |
| Keyword(1) | Mode field diameter |
| Keyword(2) | higher-order mode |
| Keyword(3) | splice loss |
| Keyword(4) | mode crosstalk |
| Keyword(5) | optical time domain reflectometry |
| 1st Author's Name | Atsushi Nakamura |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 2nd Author's Name | Keiji Okamoto |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 3rd Author's Name | Yusuke Koshikiya |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 4th Author's Name | Tetsuya Manabe |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2016-08-26 |
| Paper # | OFT2016-12 |
| Volume (vol) | vol.116 |
| Number (no) | OFT-198 |
| Page | pp.pp.5-10(OFT), |
| #Pages | 6 |
| Date of Issue | 2016-08-18 (OFT) |