Development of Novel Optical Fiber Devices Based on Photonic Band-GapFiber Couplers

2008 Fiscal Year Final Research Report

• Project/Area Number: 19760226
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Electron device/Electronic equipment
• Research Institution: Hokkaido University
• Principal Investigator: SAITOH Kunimasa Hokkaido University, 大学院情報科学研究科, 准教授 (20333627)
• Project Period (FY): 2007 – 2008
• Keywords: フォトニック結晶ファイバ / フォトニックバンドギャップファイバ / 有限要素法 / 光ファイバカップラ / 光フィルタ

Research Abstract

光ファイバのクラッド領域に空孔を周期的に配置し、その周期構造を乱す中空の欠陥領域をコアとして光波をファイバの長手方向へ伝搬させる空気コア型フォトニックバンドギャップファイバ中で生じる共振結合という新規現象を精査し、2 つのコアの間に別の欠陥を導入することにより、コア間の結合がある特定の波長でのみ非常に強くなること、さらにその共振現象を利用して、狭帯域かつ低サイドローブの波長フィルタ特性を有するフォトニックバンドギャップファイバカップラが構成可能であることを明らかにした。

Research Products

• [Journal Article] Reversed dispersion slope photonic bandgap fibers for broadband dispersion control in femtosecond fiber lasers (2008)
  • Author(s): Z. Varallyay, K. Saitoh, J. Fekete, K. Kakihara, M. Koshiba, and R. Szipocs
  • Journal Title: Optics Express Vol.16 Pages: 15603-15616
  • Peer Reviewed
• [Journal Article] Full-vectorial coupled mode theory for the evaluation of macro-bending loss in multimode fibers, application to the hollow-core photonic bandgap fibers (2008)
  • Author(s): M. Skorobogatiy, K. Saitoh, and M. Koshiba
  • Journal Title: Optics Express Vol. 16 Pages: 14945-14953
  • Peer Reviewed
• [Journal Article] Structural optimization of air-guiding photonic bandgap fibers for realizing ultimate low loss waveguides (2008)
  • Author(s): T. Murao, K. Saitoh, and M. Koshiba
  • Journal Title: IEEE/OSA Journal of Lightwave Technology Vol. 26 Pages: 1602-1612
  • Peer Reviewed
• [Journal Article] Tunable photonic crystal fiber couplers with a thermo-responsive liquid crystal resonator (2008)
  • Author(s): K. Saitoh, N.J. Florous, S.K. Varshney, and M. Koshiba
  • Journal Title: IEEE/OSA Journal of Lightwave Technology Vol. 26 Pages: 663-669
  • Peer Reviewed
• [Journal Article] Photonic bandgap fiber filter design based on nonproximity resonant coupling mechanism (2007)
  • Author(s): K. Saitoh, N.J. Florous, T. Murao, S.K. Varshney, and M. Koshiba
  • Journal Title: IEEE Photonics Technology Letters Vol. 19 Pages: 1547-1549
  • Peer Reviewed
• [Journal Article] Realistic design of large-hollow-core photonic band-gap fibers with suppressed higher order modes and surface modes (2007)
  • Author(s): K. Saitoh, N.J Florous, T. Murao, and M. Koshiba
  • Journal Title: IEEE/OSA Journal of Lightwave Technology Vol.25 Pages: 2440-2447
  • Peer Reviewed
• [Journal Article] Design of effectively single-mode air-core photonic bandgap fiber with improved transmission characteristics for the realization of ultimate low loss waveguide (2007)
  • Author(s): T. Murao, K. Saitoh, N.J. Florous, and M. Koshiba
  • Journal Title: Optics Express Vol. 15 Pages: 4268-4280
  • Peer Reviewed
• [Presentation] Control of transmission band in all-solid photonic bandgap fibers with novel hybridized bandgap structure (2009)
  • Author(s): K. Saitoh, T. Taru, T. Nagashima, T. Murao, K. Maeda, T. Sasaki, S.K. Varshney, and M. Koshiba
  • Organizer: Optical Fiber Communication Conference and National Fiber Optic Engineers Conference (OFC/NFOEC 2009)
  • Place of Presentation: San Diego, California, USA
  • Year and Date: 2009-03-26
• [Presentation] Reversed dispersion slope photonic bandgap fibers and femtosecond pulse propagation (2009)
  • Author(s): Z. Varallyay, K. Saitoh, A. Szabo, K. Kakihara, M. Koshiba, and R. Szipocs
  • Organizer: Optical Fiber Communication Conference and National Fiber Optic Engineers Conference (OFC/NFOEC 2009)
  • Place of Presentation: San Diego, California, USA
  • Year and Date: 2009-03-26
• [Presentation] Microstructured optical fibers: From design to applications (2008)
  • Author(s): K. Saitoh and M. Koshiba
  • Organizer: International Conference on Fiber Optics and Photonics (PHOTONICS 2008)
  • Place of Presentation: Delhi, India
  • Year and Date: 2008-12-12
• [Presentation] Theoretical design of multi-core photonic crystal fiber based 1×4 power splitters (2008)
  • Author(s): S.K. Varshney, K. Saitoh, R.K. Sinha, and M. Koshiba
  • Organizer: Optoelectronics and Communication Conference (OECC 2008)/ Australian Conference on Optical Fiber Technology (ACOFT 2008)
  • Place of Presentation: Sydney, Australia
  • Year and Date: 2008-07-09
• [Presentation] Nonlinear enhancement and dispersion management in bismuth microstructured fibers with a filled slot defect (2008)
  • Author(s): K. Saitoh, K. Kakihara, S.K. Varshney, and M. Koshiba
  • Organizer: Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference (CLEO/QELS 2008)
  • Place of Presentation: San Jose, California, USA
  • Year and Date: 2008-05-06
• [Presentation] Structural optimization of ultimate low loss air-guiding photonic bandgap fibers (2008)
  • Author(s): T. Murao, K. Saitoh, and M. Koshiba
  • Organizer: Optical Fiber Communication Conference and National Fiber Optic Engineers Conference (OFC/NFOEC 2008)
  • Place of Presentation: San Diego, California, USA
  • Year and Date: 2008-02-27
• [Presentation] Resonant coupling in photonic crystal fibers (2007)
  • Author(s): K. Saitoh, S.K. Varshney, and M. Koshiba
  • Organizer: Optoelectronics and Communications Conference and International Conference on Integrated Optics and Optical Fiber Communication (OECC/IOOC 2007)
  • Place of Presentation: Yokohama, Japan
  • Year and Date: 2007-07-10
• [Presentation] All-fiber integrated assemblies based on the resonant tunneling effect in multi-core photonic band-gap fibers (2007)
  • Author(s): K. Saitoh, N.J. Florous, S.K. Varshney, and M. Koshiba
  • Organizer: Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference (CLEO/QELS 2007)
  • Place of Presentation: Baltimore, USA
  • Year and Date: 2007-05-08
• [Presentation] Tunable photonic crystal fiber couplers infiltrated with highly-thermo-responsive liquid crystal substances (2007)
  • Author(s): K. Saitoh, N.J. Florous, S.K. Varshney, and M. Koshiba
  • Organizer: Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference (CLEO/QELS 2007)
  • Place of Presentation: Baltimore, USA
  • Year and Date: 2007-05-08