Optical Switch by Light Intensity Control in Cascaded Coupled Waveguides

2 Citations 12 References
  • KISHIKAWA Hiroki
    the Department of Information and Computer Sciences, Toyohashi University of Technology
  • GOTO Nobuo
    the Department of Information and Computer Sciences, Toyohashi University of Technology

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Abstract

Lightwave switching is discussed with a cascaded connection of optical couplers with light intensity control elements. By employing wavelength-selective amplifiers such as a waveguide-type Raman amplifier, all-optical wavelength-selective switching can be realized. We discuss analytically using coupled-mode theory that the lightwave switching is feasible by controlling the intensity of propagating lightwave. The switching operation is verified numerically using finite-difference beam-propagation method. As a result, the expected operation is realized and some characteristics involved with dependencies of wavelength and phase are also investigated. A preliminary experiment using attenuators, beam splitters and mirrors is also described to verify the switching operation with only light-intensity control in interferometers.

Journal

  • IEICE Trans. Electron., C

    IEICE Trans. Electron., C 90 (2), 492-498, 2007-02-01

    The Institute of Electronics, Information and Communication Engineers

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Keywords

Details 詳細情報について

  • CRID
    1570854177533368960
  • NII Article ID
    110007519642
  • NII Book ID
    AA10826283
  • ISSN
    09168524
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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