Improved thermal and strain performance of annealed polymer optical fiber Bragg gratings

Wu Yuan, Alessio Stefani, Morten Bache, Torben Jacobsen, Bjarke Rose, Nicolai Herholdt-Rasmussen, Finn Kryger Nielsen, Søren Andresen, Ole Brøsted Sørensen, Knud Styhr Hansen, Ole Bang

Research output: Contribution to journalArticlepeer-review


We report on a detailed study of the inscription and characterization of fiber Bragg gratings (FBGs) in commercial step index polymer optical fibers (POFs). Through the growth dynamics of the gratings, we identify the effect of UV-induced heating during the grating inscription. We found that FBGs in annealed commercial POFs can offer more stable short-term performance at both higher temperature and larger strain. Furthermore, the FBGs' operational temperature and strain range without hysteresis was extended by the annealing process. We identified long-term stability problem of even the annealed POF FBGs.

Original languageEnglish (US)
Pages (from-to)176-182
Number of pages7
JournalOptics Communications
Issue number1
StatePublished - Jan 1 2011
Externally publishedYes


  • Fiber Bragg grating
  • Polymer optical fiber

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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