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Measurement of cut-off wavelength in monomode fibres by a polarization method

Abstract

A method for the measurement of cut-off wavelength of higher order mode in monomode fibres, based on the different polarization properties of the modes, is discussed. It permits one to derive the fraction of power guided in the fundamental mode, at each wavelength. Experimental results that prove the reliability and the accuracy of the method are provided. Criteria for the choice of the sample length for the measurement are also discussed. Finally a very simplified, yet precise, measurement procedure is suggested.

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Coppa, G., Di Vita, P. & Rossi, U. Measurement of cut-off wavelength in monomode fibres by a polarization method. Opt Quant Electron 17, 41–45 (1985). https://doi.org/10.1007/BF00619992

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Keywords

  • Communication Network
  • Measurement Procedure
  • Fundamental Mode
  • Order Mode
  • Sample Length