High-sensitivity optical chemsensor based on etched D-fibre Bragg gratings

Kaiming Zhou*, Xianfeng F. Chen, Lin Zhang, Ian Bennion

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A novel and simple optical chemsensor concept based on cladding etched Bragg gratings UV-inscribed in D-fibre is reported. The sensitisation process of the Bragg structure to the refractive index of surrounding-medium under HF-etching has been investigated. Two etched devices were used to measure the concentrations of sugar solution, giving sensitivity as high as 0.02 nm/%.

Original languageEnglish
Pages (from-to)232-234
Number of pages3
JournalElectronics letters
Issue number4
Publication statusPublished - Apr 2004


  • high-sensitivity optical chemsensor
  • etched D-fibre Bragg gratings
  • cladding
  • sensitisation process
  • Bragg structure
  • refractive index
  • HF-etching
  • sugar solution
  • UV-inscribed D-fibre


Dive into the research topics of 'High-sensitivity optical chemsensor based on etched D-fibre Bragg gratings'. Together they form a unique fingerprint.

Cite this