Analysis of photosensitivity of copolymer optical fibre preform

Hui Ma, Zeng Chang Li, Hai Ming, Qi Jin Zhang, Hwa Yaw Tam, Yong Sheng Zhang, Tao Zhang, Pei Wang, Jia Ping Xie

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)


The photosensitivity of copolymer optical fibre preform is analysed in comparison with the doped one. The effects of write conditions such as pump power and pump time have been studied. Then, the preform is drawn into single mode polymer optical fibre with core refractive index of 1.499, and core-cladding refractive-index difference of 0.008. Long-period birefringence gratings with period of 120 um are fabricated in the fibre. The duty cycle is 50%, and the refractive index change in the exposed area is about 1 × 10-3.
Original languageEnglish
Pages (from-to)2252-2254
Number of pages3
JournalChinese Physics Letters
Issue number11
Publication statusPublished - 1 Nov 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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