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Transmission properties of the single mode fiber with a cross-sectional micro-channel investigated using time-domain finite difference (FDTD) method

Authors
Journal
Optical Fiber Technology
1068-5200
Publisher
Elsevier
Publication Date
Volume
17
Issue
6
Identifiers
DOI: 10.1016/j.yofte.2011.07.016
Keywords
  • Fiber Optic Sensor
  • Micro-Channel
  • Index-Sensing
  • Time-Domain Finite Difference (Fdtd) Method

Abstract

Abstract Light scattering by a micro-channel intersecting core of a single mode fiber (SMF) has been investigated by use of two dimensional time-domain finite difference (2D-FDTD) method and the numerical results are in good agreement with those reported in the experiments. The transmission properties of the SMF with such a micro-channel can be attributed to the combined results of scattering effect and FP resonance effect. It is suggested that the SMF with micro-channel of about 4–6 μm in diameter can be effectively used for refractive index sensing with a high refractive index resolution up to ∼10 −5.

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