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Paper Abstract and Keywords
Presentation 2008-11-21 08:45
Analysis of bending loss in solid-core photonic bandgap fibers
Tadashi Murao, Kunimasa Saitoh, Masanori Koshiba (Hokkaido Univ.) OFT2008-59
Abstract (in Japanese) (See Japanese page) 
(in English) Solid-core photonic bandgap fibers (SC-PBGFs) have gathered much attention because of its intriguing transmission band properties which can be understood by the theory for ARROW waveguides. In SC-PBGFs, it has been reported experimentally that the centripetal radiation as well as the centrifugal radiation occurs, when the fiber is bent at longer wavelength ranges in the PBG. This anomalous property was explained by considering the existence of the inner radiation caustic, which can not be seen in conventional optical fibers. However, the further analysis is required to understand the detailed properties of bent SC-PBGFs. In this paper, we investigate the bending loss properties for the SC-PBGFs through a full-vector modal solver based on the finite element method (FEM). In particular, we show that the cladding modes which induced by the bend cause the complete or incomplete leaky mode coupling with the core mode. Moreover, we show the structural and wavelength dependence of the bending losses for the SC-PBGFs.
Keyword (in Japanese) (See Japanese page) 
(in English) Photonic bandgap fiber / photonic crystal fiber / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 310, OFT2008-59, pp. 65-70, Nov. 2008.
Paper # OFT2008-59 
Date of Issue 2008-11-13 (OFT) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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Conference Information
Committee OFT OCS ITE-BCT IEE-CMN  
Conference Date 2008-11-20 - 2008-11-21 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To OFT 
Conference Code 2008-11-OFT-OCS-BCT-CMN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of bending loss in solid-core photonic bandgap fibers 
Sub Title (in English)  
Keyword(1) Photonic bandgap fiber  
Keyword(2) photonic crystal fiber  
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1st Author's Name Tadashi Murao  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Kunimasa Saitoh  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Masanori Koshiba  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker Author-1 
Date Time 2008-11-21 08:45:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2008-59 
Volume (vol) vol.108 
Number (no) no.310 
Page pp.65-70 
#Pages
Date of Issue 2008-11-13 (OFT) 


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