Design of single-band bandpass filter using photonic bandgap fiber by suppressing core modes in higher order bandgaps

Zahra Kakaie, Barmak Honarvar Shakibaei, Yong Meng Sua, Desmond M. Chow, Ghafour Amouzad Mahdiraji, Faisal Rafiq Mahamd Adikan

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We present two designs of all-solid photonic bandgap fiber (PBGF) for higher order bandgap suppression to realize a unique transmission window for optical filtering purposes. These two approaches are based on either applying a low-refractive-index core or a high-refractive-index background. This paper describes direct calculations of different modes in high-index rods in the all-solid PBGF using the antiresonant reflecting optical waveguide model for a double-cladded step index fiber. The flat-top single-band bandpass filter was obtained with potential center wavelength over ultraviolet, visible, and infrared regions. We achieve the single-band bandpass filter with minimum passband-to-rejection-band ratio of 20 dB in core power. From the calculated performance, both analytical and simulation results are in good agreement with confinement loss calculation.

Original languageEnglish
Article number7117335
JournalIEEE Photonics Journal
Volume7
Issue number3
DOIs
StatePublished - 1 Jun 2015

Keywords

  • Fiber properties
  • Photonic crystal fibers
  • Waveguides
  • Wavelength filtering devices

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