| Presentation | 2007-11-21 Designs and Fabrications of Photonic Crystal Fiber Couplers with Air Hole Controlled Tapers Hirohisa YOKOTA, Hiroki KAWASHIRI, Hirotomo YASHIMA, Yutaka SASAKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Coupling characteristics of photonic crystal fiber couplers (PCFCs) were theoretically investigated. In PCFCs with air hole remaining tapers, we found that a smaller elongation ratio i.e. a stronger elongation is required to obtain optical coupling as an air hole pitch or a ratio of air hole diameter to pitch is larger. In PCFCs with air hole collapsed tapers, it was clarified that an excess loss of the PCFC becomes higher as an air hole collapsed elongation ratio becomes larger. It was also clarified that an air hole remaining PCFC has wavelength-flattened characteristics in extinction ratio compared to an air hole collapsed PCFC. Air hole remaining PCFCs and air hole collapsed PCFCs were fabricated using a CO_2 laser irradiation technique. We could successfully control whether air holes in the PCFC taper were remaining or collapsed by adjusting the irradiated laser power in the elongation process of the PCFC fabrication. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Photonic crystal fiber / Optical fiber coupler / Beam propagation method / CO_2 laser irradiation technique |
| Paper # | OFT2007-42 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2007/11/14(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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| Assistant | |
| 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) | Designs and Fabrications of Photonic Crystal Fiber Couplers with Air Hole Controlled Tapers |
| Sub Title (in English) | |
| Keyword(1) | Photonic crystal fiber |
| Keyword(2) | Optical fiber coupler |
| Keyword(3) | Beam propagation method |
| Keyword(4) | CO_2 laser irradiation technique |
| 1st Author's Name | Hirohisa YOKOTA |
| 1st Author's Affiliation | Faculty of Engineering, Ibaraki University() |
| 2nd Author's Name | Hiroki KAWASHIRI |
| 2nd Author's Affiliation | Faculty of Engineering, Ibaraki University |
| 3rd Author's Name | Hirotomo YASHIMA |
| 3rd Author's Affiliation | Faculty of Engineering, Ibaraki University |
| 4th Author's Name | Yutaka SASAKI |
| 4th Author's Affiliation | Faculty of Engineering, Ibaraki University |
| Date | 2007-11-21 |
| Paper # | OFT2007-42 |
| Volume (vol) | vol.107 |
| Number (no) | 344 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |