Multiparameter point sensing with the FBG-containing multicore optical fiber

Alexey Wolf, Kirill Bronnikov, Alexandr Dostovalov, Victor Simonov, Vadim Terentyev, Sergey Babin

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review


We investigate possibilities of using a multicore fiber containing fiber Bragg grating (FBG) in sensing applications. We use the advantages of the femtosecond point-by-point technique to inscribe FBGs in the selected cores of polyimidecoated 7-core fiber. Besides the results on 3D shape sensing we present new approaches for acoustic wave detection and environment refractive index sensing. In particular, we show that spatial division multiplexing with a multicore fiber allows one to create multipoint acoustic sensor based on a single laser source. In addition, to detect the change in environment refractive index by using point-by-point FBG, there is no need in fiber coating removal. Thus, durability of the fiber along with the FBG inscription approach is of great potential for fabrication of next generation multiple parameter sensors.

Original languageEnglish
Title of host publicationOptical Sensing and Detection VI
EditorsFrancis Berghmans, Anna G. Mignani
ISBN (Electronic)9781510634800
Publication statusPublished - 1 Apr 2020
EventOptical Sensing and Detection VI 2020 - Virtual, Online, France
Duration: 6 Apr 202010 Apr 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceOptical Sensing and Detection VI 2020
CityVirtual, Online


  • Fiber Bragg grating
  • Milticore optical fiber
  • Multiple parameter sensor
  • Optical fiber sensor

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