Applied Physics B

, Volume 99, Issue 4, pp 717–726 | Cite as

Polarization and dispersion properties of elliptical hole golden spiral photonic crystal fiber

  • A. Agrawal
  • N. Kejalakshmy
  • B. M. A. Rahman
  • K. T. V. Grattan
Article

Abstract

An elliptical air-hole golden spiral photonic crystal fiber (EGS-PCF) is analyzed with the full-vectorial finite element method. The air-holes in the EGS-PCF are arranged in a spiral pattern governed by the Golden Ratio, where the design has been inspired by the optimal arrangement of seeds found in nature. The EGS-PCF exhibits extremely high birefringence (∼0.022 at operating wavelength 1550 nm) which is particularly useful for generating a polarization stable supercontinuum (SC). The fiber can also be designed to have a Zero Dispersion Wavelength (ZDW) at a suitable wavelength for only one polarization and large negative dispersion for the other, leading to a single-polarization SC. In addition, the fiber dispersion can be designed to obtain ZDWs at 800 nm and 1064 nm simultaneously, which can facilitate broadband supercontinuum generation (SCG) through multi-wavelength pumping.

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • A. Agrawal
    • 1
  • N. Kejalakshmy
    • 1
  • B. M. A. Rahman
    • 1
  • K. T. V. Grattan
    • 1
  1. 1.School of Engineering and Mathematical SciencesCity University LondonLondonUK

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