Locally pressed plastic optical fibers for refractive index sensing

Shumpei Shimada, Heeyoung Lee, Makoto Shizuka, Hiroki Tanaka, Neisei Hayashi, Yosuke Mizuno, Kentaro Nakamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Power-based refractive index (RI) sensing is demonstrated by exploiting an ultrasonically pressed plastic optical fiber (POF). We can be easily and cost-efficiently fabricate this structure, within a short while (∼1 s), without using external heat sources or chemical materials. We have only to simply press the horn connected to an ultrasonic transducer against part of the POF. The RI dependence of the transmitted power exhibits linear trends in the RI ranges from ∼1.32 to ∼1.36 (coefficient: 62 dB/RIU (RI unit)) and ∼1.40 to ∼1.44 (coefficient: 257 dB/RIU)). We also study the temperature dependence of the transmitted power.

Original languageEnglish
Title of host publication25th International Conference on Optical Fiber Sensors
EditorsLibo Yuan, Youngjoo Chung, Wei Jin, Byoungho Lee, John Canning, Kentaro Nakamura
ISBN (Electronic)9781510610910
Publication statusPublished - 2017
Externally publishedYes
Event25th International Conference on Optical Fiber Sensors, OFS 2017 - Jeju, Korea, Republic of
Duration: 2017 Apr 242017 Apr 28

Publication series

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


Conference25th International Conference on Optical Fiber Sensors, OFS 2017
Country/TerritoryKorea, Republic of


  • Optical fiber sensors
  • Plastic optical fibers
  • Refractive index sensing
  • Ultrasonics

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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