Polymer-fiber random lasers based on pumping radiation effect

Xianxian Chen, Kang Xie, Xiaojuan Zhang, Zhendong Xie, Jiajun Ma, Jianxiang Wen, Jingjing Chen, Junxi Zhang, Xusheng Cheng, Zhijia Hu

Research output: Contribution to journalArticlepeer-review


In this study, we coated laser dye-doped polymethyl methacrylate on the surface of a bare
polymer optical fiber (POF) to fabricate new POFs. Coherent random lasers are obtained for the
gain POFs under the pump of a 532 nm laser. The mechanism for the random lasers is based on
the refractive index heterogeneity scattering of the coating gain polymer. The variations of
random lasers with different coating thicknesses and POF lengths under radiation pumping mode
have been investigated. One important finding from our experiment is that dye-doped POF
exhibits good photostability and self-healing properties. In addition, polymer-fiber random lasers
as a sensor are researched in different concentrations of solutions. The intensity of the random
lasers increases with the increase of the content of the surrounding ethanol solution due to
swollen effect of the POF with a large gain length.
Original languageEnglish
Article number115509
JournalPhysica Scripta
Issue number11
Early online date21 Aug 2019
Publication statusPublished - 21 Aug 2019

Bibliographical note

Funding: National Natural Science Foundation of China; European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie.


  • radiation effect
  • random laser
  • sensor


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