Brillouin properties influenced by glass transition in plastic optical fibers

Kazunari Minakawa, Kotaro Koike, Qiming Du, Neisei Hayashi, Yasuhiro Koike, Yosuke Mizuno, Kentaro Nakamura

研究成果: Paper査読

抄録

A temperature-dependence coefficient of Brillouin frequency shift (BFS) in plastic optical fibers (POFs) is known to start decreasing drastically at a certain "Brillouin critical temperature". Here, we study the relationship between the critical temperature and the core glass transition temperature (Tg) using five poly(2,2,2-trifluoroethyl methacrylate) samples with different Tg values. In all the samples, the BFS is found to start decreasing abruptly at a temperature lower than Tg by approximately 10 °C, which agrees well with the phase transition starting temperature measured by using a differential scanning calorimeter. Thus, the critical temperature in POFs is shown to be adjustable by controlling Tg, leading to the possible development of distributed temperature sensors with ultra-high sensitivity.

本文言語English
ページ236-239
ページ数4
出版ステータスPublished - 2014
イベント23rd International Conference on Plastic Optical Fibers, POF 2014 - Hiyoshi, Yokohama, Japan
継続期間: 2014 10月 82014 10月 10

Other

Other23rd International Conference on Plastic Optical Fibers, POF 2014
国/地域Japan
CityHiyoshi, Yokohama
Period14/10/814/10/10

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 材料化学
  • ポリマーおよびプラスチック

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