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| Presentation | 2007-11-21 15:25 Designs and fabrications of photonic crystal fiber couplers with air hole controlled taper regions Hirohisa Yokota, Hiroki Kawasiri, Hirotomo Yashima, Yutaka Sasaki (Ibaraki Univ.)  OFT2007-42 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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 CO2 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) |
| (in English) | Photonic crystal fiber / Optical fiber coupler / Beam propagation method / CO2 laser irradiation technique / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 344, OFT2007-42, pp. 17-21, Nov. 2007. | |
| Paper # | OFT2007-42 | |
| Date of Issue | 2007-11-14 (OFT) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | OFT2007-42 |
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| Conference Information | |
| Committee | OCS OFT ITE-BCT IEE-CMN |
| Conference Date | 2007-11-21 - 2007-11-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | OFT |
| Conference Code | 2007-11-OCS-OFT-ITE-BCT-IEE-CMN |
| Language | Japanese |
| 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 taper regions |
| Sub Title (in English) | |
| Keyword(1) | Photonic crystal fiber |
| Keyword(2) | Optical fiber coupler |
| Keyword(3) | Beam propagation method |
| Keyword(4) | CO2 laser irradiation technique |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Hirohisa Yokota |
| 1st Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
| 2nd Author's Name | Hiroki Kawasiri |
| 2nd Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
| 3rd Author's Name | Hirotomo Yashima |
| 3rd Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
| 4th Author's Name | Yutaka Sasaki |
| 4th Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
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| Speaker | Author-1 |
| Date Time | 2007-11-21 15:25:00 |
| Presentation Time | 25 minutes |
| Registration for | OFT |
| Paper # | OFT2007-42 |
| Volume (vol) | vol.107 |
| Number (no) | no.344 |
| Page | pp.17-21 |
| #Pages | 5 |
| Date of Issue | 2007-11-14 (OFT) |
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