| Presentation | 2012-05-24 Analyzing a New Mechanism of Air Holes to Suppress Micro-bending Loss in Large-mode-area Optical Fibers Yukihiro TSUCHIDA, Kazunori MUKASA, Ryuichi SUGIZAKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have reported a new type of optical fibers with a core formed by matured technology, namely the VAD method, and air-holes arranged in a circular pattern around the fiber edge, which do not affect its optical properties such as Aeff, macro-bending loss, and cutoff wavelength but reduce micro-bending loss. From this result, we have indicated that the air-holes have a novel functionality of absorbing micro-deformation from the outside, leading to the significant reduction of micro-bending loss. However, we have not yet fully understood the mechanism of the micro-bending loss reduction, whether the reduction is obtained by mechanical effect of air-holes or index difference between air and silica. Moreover, we have not yet investigated the micro-bending loss dependent on the air-hole diameter. In this paper, in order to study a functionality of air-holes placed around the fiber edge, we designed and fabricated the trench-index core fiber with Aeff of 140 μm^2 having air-holes acting as micro-bending loss reducer with macro-bending loss of 28 dB/m and micro-bending loss of 7.8 dB/km, which has a low micro-bending loss relative to the micro-bending loss value of SMF with the same Aeff of 140 μm^2. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Hole-assisted Fiber / Large-mode-area Optical Fiber / Micro-bending Losses |
| Paper # | OFT2012-4 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2012/5/17(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) | Analyzing a New Mechanism of Air Holes to Suppress Micro-bending Loss in Large-mode-area Optical Fibers |
| Sub Title (in English) | |
| Keyword(1) | Hole-assisted Fiber |
| Keyword(2) | Large-mode-area Optical Fiber |
| Keyword(3) | Micro-bending Losses |
| 1st Author's Name | Yukihiro TSUCHIDA |
| 1st Author's Affiliation | Fitel Photonics Laboratory, Furukawa Electric co., ltd.() |
| 2nd Author's Name | Kazunori MUKASA |
| 2nd Author's Affiliation | Fitel Photonics Laboratory, Furukawa Electric co., ltd. |
| 3rd Author's Name | Ryuichi SUGIZAKI |
| 3rd Author's Affiliation | Fitel Photonics Laboratory, Furukawa Electric co., ltd. |
| Date | 2012-05-24 |
| Paper # | OFT2012-4 |
| Volume (vol) | vol.112 |
| Number (no) | 54 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |