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2002 Fiscal Year Final Research Report Summary

Multi-Channel Photonic Switching System using Polarization Control Devices

Research Project

Project/Area Number 11450152
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 情報通信工学
Research InstitutionKanagawa Institute of Technology

Principal Investigator

NAKAGAMI Takakiyo  Kanagawa Institute of Technology, Electrical and Electronics Engineering Department, Professor, 工学部, 教授 (20267636)

Co-Investigator(Kenkyū-buntansha) NAKATSUHARA Katsumi  Kanagawa Institute of Technology, Electrical and Electronics Engineering Department, Research Associate, 工学部, 助手 (70339894)
KOMIYA Kazumi  Kanagawa Institute of Technology, Information Network Electronics Engineering Department, Professor, 工学部, 教授 (10267635)
UNO Takkehiko  Kanagawa Institute of Technology, Electrical and Electronics Engineering Department, Professor, 工学部, 教授 (50257408)
Project Period (FY) 1999 – 2002
KeywordsPhotonic Switching / Optical Switch / Polarization Switching / Liquid Crystal Switch / Liquid Crystal Device / Ferroelectric Liquid Crystal / Polarization Control Device
Research Abstract

The purpose of this research is to develop multichannel optical switches using ferro-electric liquid crystal polarization control devices (FLC-PCD) and to build a novel photonic switching system using them.
The research results include ;
1. A new design theory of FLC-PCD was developed and confirmed by the experiment
Polarization control characteristics of the FLC-PCDs were theoretically studied by using Jones vectors. The study was done for cases that the light passes through the device with an oblique angle and the oblique incident light is reflected back at the other side by the total reflection and by a AU mirror electrode. The design theory of the FLC-PCDs was developed based on the study and its feasibility was confirmed by experimental FLC-PCDs.
2. Multi-channel optical switches using FLC-PCDs were developed
Various configurations of the polarization controlled optical switches using FLC-PCDs were proposed. And basic 2x2 switch and 4x4 switches were successfully developed for optical communication wavelengths of 1.31μm and 1.55 μm.
3. Fundamental experiment of photonic switching system was carried out
Fundamental experiment of photonic switching system has been carried out using the developed 2x2 optical switch and the switching function of high-speed optical digital signals has been confirmed.
As a result, the feasibility of the basic concept of the polarization controlled multi-channel photonic switching system has been confirmed and the next stage of the research will be to demonstrate the larger scale switching system by using optical switches with increased number of input and output channels.

  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] N.Ogawa, K.Machida, T.Nakagami: "A Design Theory of Ferroelectric Liquid Crystal polarization Control Device for Tilted Incident Light Angle"Electronics and Communications in Japan, Part2. 85,3. 30-39 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Nakatsuhara, T.Shirado, S.H.Jeong, T.Mizumoto, et al.: "GaInAsP/InP Directional Coupler Loaded with Grating for Optically-Controlled Switching"IEICE Transactions on Electronics. E85-C,4. 1039-1045 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Uno, S.Noge: "Frequency Measurement of Piezoelectric Resonator Using Laser Light"Jpn. J. Appl. Phys.. Vol.41. 3290-3294 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Uno, S.Noge: "Piezoelectricity in Poled Ge-Doped Silica Thin Films"Jpn. J. Appl. Phys.. Vol.41. 3431-3432 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小林, 中津原, 中神: "強誘電性液晶を用いた位相可変導波路"第49回応用物理学関係連合講演会. 28a-ZS-1. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 後藤, 中津原, 中神: "強誘電性液晶をクラッド層に用いたTiO2チャネル導波路"2002電子情報通信学会エレクロトニクスソサエティ大会. C-3-127. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] N. Ogawa, K. Machida, and T. Nakagami: "A Design Theory of Ferro-Electric Liquid Crystal Polarization Control Device for Tilted Incident Light Angle"Journal of IEICEJ. vol. J84-C, No. 4. 251-258 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Ogawa, K. Machida, Y. Okada, and T. Nakagami: "A Design of Reflection-Type Polarization Control Device Using Ferro-Electric Liquid Crystals"Journal of IEICEJ. vol. J84-C, No. 12. 1247-1256 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S. Noge and T. Uno: "Growth of magneto-optic Ce : YIG thin films on amorphous silica substrates"J of European Ceramic Society. Vol.21. 1957-1960 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Ogawa, K. Machida, and T. Nakagami: "A design theory of ferroelectric liquid crystal polarization control device for tilted incident light angle"Electronics Com-munication in Japan. Part2, Vol. 85, No. 3. 251-258 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K. Nakatsuhara, T. Shirado, S. H. Jeong, T. Mizumoto, M. Takenaka, and Y. Nakano: "GaInAsP/InP directional coupler loaded with grating for optically controlled switching"IEICE Trans. On Electronics. Vol.E85-C, No. 4. 1039-1045 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S. Noge and T. Uno: "Frequency Measurement of Piezoelectric Resonator Using Laser Light"Jpn. J. Appl. Phys.. Vol. 41. 3290-3294 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Uno and S. Noge: "Piezoelectricity in Poled Ge-Doped Silica Thin Films"Jpn. J. Appl. Phys.. Vol. 41. 3431-3432 (2002)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2004-04-14  

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