Cladding-Mode-Recoupling-Based Tilted Fiber Bragg Grating Sensor With a Core-Diameter-Mismatched Fiber Section

Bin Zhou, Aping Zhang, Sailing He, Bobo Gu, Bin Zhou, Sailing He

Research output: Journal article publicationJournal articleAcademic researchpeer-review

46 Citations (Scopus)


We demonstrate a reflective fiber-optic sensor with a core-diameter-mismatched fiber section and cladding-mode recoupling in a tilted fiber Bragg grating (TFBG). High-order cladding modes are efficiently excited by either a multimode fiber or a thin-core fiber section and recoupled back to the core mode by the TFBG. A special reflection spectrum with recoupling of cladding mode is then obtained to exploit the applications of evanescent waves in an optical fiber. Experimental results of the sensor to measure the external refractive index are presented.
Original languageEnglish
Pages (from-to)152-157
Number of pages6
JournalIEEE Photonics Journal
Issue number2
Publication statusPublished - 1 Jan 2010
Externally publishedYes


  • fiber Bragg grating (FBG)
  • Fiber optics
  • fiber-optic sensor
  • refractive index sensor

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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