Numerical study on bragg fibers for infrared applications

Changzhi Li, Wei Zhang, Yidong Huang, Jiangde Peng

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The photonic band structure, waveguiding mechanism, mode field distribution, leakage loss, and material loss of Bragg fiber are studied by the full vectorial plane wave expansion method and the transfer matrix method. Systematical study has shown the distinctive properties of Bragg fiber and the similarity between Bragg fiber and hollow metallic waveguide, demonstrating the feasibility of Bragg fiber to work in a low loss, single mode manner. Furthermore, a comparison between the band structures calculated by plane wave expansion method and by transfer matrix method is conducted to show the practicability to treat Bragg fiber's electromagnetic behavior in a Bloch theorem approach, verifying the photonic bandgap concept for the analysis of Bragg fiber.

Original languageEnglish
Pages (from-to)893-904
Number of pages12
JournalInternational Journal of Infrared and Millimeter Waves
Issue number6
StatePublished - Jun 2005


  • Bragg fiber
  • Leakage loss
  • Material loss
  • Mode analysis
  • Photonic bandgap
  • Plane wave expansion method (PWM)
  • Transfer matrix method (TMM)


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