Effect of UV uniform exposure on coupling characteristics of long-period fiber gratings

B. O. Guan, Hwa Yaw Tam, Siu Lau Ho, X. Y. Dong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)


UV uniform exposure can vary coupling characteristics of the annealed long-period gratings in hydrogen-loaded fiber. With the increase of UV exposure, the resonance wavelength shifts toward longer wavelength and resonance peak intensity increases first and then decreases. A theoretical explanation for this phenomenon was given. The transmission spectra of the grating after exposure of different number of UV pulses were presented. The resonance peak intensity and resonance wavelength of the grating with respect to UV pulse number were described.
Original languageChinese (Simplified)
Pages (from-to)147-149
Number of pages3
JournalGuangxue Xuebao/Acta Optica Sinica
Issue number2
Publication statusPublished - 1 Feb 2001


  • Coupling characteristics
  • Long-period fibre gratings
  • UV uniform exposure

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

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