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Design of effectively single-mode air-core photonic bandgap fiber with improved transmission characteristics for the realization of ultimate low loss waveguide

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/22105

Title: Design of effectively single-mode air-core photonic bandgap fiber with improved transmission characteristics for the realization of ultimate low loss waveguide
Authors: Murao, Tadashi Browse this author
Saitoh, Kunimasa Browse this author →KAKEN DB
Florous, Nikolaos J. Browse this author
Koshiba, Masanori Browse this author →KAKEN DB
Keywords: Fiber design and fabrication
Fiber properties
Issue Date: 2-Apr-2007
Publisher: Optical Society of America
Journal Title: Optics Express
Volume: 15
Issue: 7
Start Page: 4628
End Page: 4280
Abstract: In this paper, we study the novel propagation properties of an improved triangular-type air-core photonic bandgap fiber (PBGF) structured with an anti-resonant silica core surround, through a full-vector modal solver based on the finite-element method (FEM). At first, to realize a single-mode operation over a wide wavelength range, the fiber whose core is constructed by removing 1 air-hole and expanded is proposed and structurally-optimized. In particular, the structural parameters for the fiber that prevent the narrow-band transmission due to the existence of the surface modes and enhance the confinement of the power in the air-core are presented. For the realization of an ultimate low loss transmission, a 7-unit-cell PBGF is analyzed and we show that the 7-unit-cell PBGF can achieve not only lower confinement loss than that of regular-type 7-unit-cell PBGF, but also lower power fraction in the silica-ring when compared with the regular 19-unit-cell PBGF with an anti-resonant core surround, exhibiting an effectively single-mode operation.
Rights: © 2007 Optical Society of America, Inc.
Type: article (author version)
URI: http://hdl.handle.net/2115/22105
Appears in Collections:情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 村尾 覚志

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