NOVEL FIBER OPTIC SENSOR BASED ON IN-LINE CORE-CLADDING INTERMODAL INTERFEROMETER AND PHOTONIC CRYSTAL FIBER

• Abstract:

  We propose a simple all-fiber structure based on intermodal interference between a core and a cladding mode of an endlessly single-mode photonic crystal fiber section sandwiched between a lead-in and lead-out SMF-28 fiber. The sensitivities to strain, pressure and temperature are measured. The interferometer is compared to an interferometer based on LP₀₁-LP₀₂ SMF-28 fiber and to a PCF-based tapered LPG.
• Keywords:

  intermodal interferometer, photonic crystal fiber, fiber-optic sensors
• Download:

  IMEKO-WC-2009-TC2-453.pdf
• DOI:

  _unreg_wc-2009.453

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