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Coupling characteristics of three-core photonic crystal fiber couplers

  • Ming Yang Chen*
  • , Yong Kang Zhang
  • , Jun Zhou
  • , E. Y.B. Pun
  • *Corresponding author for this work
  • Jiangsu University
  • City University of Hong Kong

Research output: Contribution to journalArticlepeer-review

Abstract

The coupling characteristics of a three-core photonic crystal fiber (PCF) and its application as a broadband directional coupler are investigated. Numerical investigations demonstrated that broadband directional coupling with spectral width as large as 425nm and polarization-dependent loss lower than 0.06dB could be achieved in the proposed fiber coupler. In addition, the proposed fiber shows large tolerance to the variation of the fiber parameters. In particular, the fiber allows at least 4% deviation of the air-hole diameters and 10% deviation from the proposed length of 27mm.

Original languageEnglish
Article number015102
JournalJournal of Optics A: Pure and Applied Optics
Volume11
Issue number1
DOIs
StatePublished - 2009
Externally publishedYes

Keywords

  • Beam propagation method
  • Directional coupler
  • Photonic crystal fibre
  • Polarization-dependent loss

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