Multi-functional gallium arsenide photonic crystal polarization splitter with a gold core

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Chao Liu
  • Sinuo An
  • Jingwei Lv
  • Lin Yang
  • Famei Wang
  • Qiang Liu
  • Xianli Li
  • Weiquan Su
  • Tao Sun

Detail(s)

Original languageEnglish
Article number2150229
Journal / PublicationModern Physics Letters B
Volume35
Issue number14
Online published6 Mar 2021
Publication statusPublished - 20 May 2021

Abstract

A multi-functional dual-core photonic crystal fiber (PCF) polarization beam splitter with a central oval hole filled with gold is designed and described. The first layer on the circular holes around the core is filled with the nematic liquid crystal (NLC) to enhance birefringence. The full-vector finite element method is employed to study the characteristics of the polarization beam splitter and derive the optimal parameters. When the fiber length is 14.55 μm, the polarized light in the x- and y-directions can be separated at a wavelength of 1.31 μm and the bandwidths are 257 and 238 nm, respectively, for extinction ratios bigger than 10 dB. When the fiber length is 10.86 μm, the polarized light in the x- and y-directions can be separated at a wavelength of 1.55 μm and the bandwidths are 239 and 174 nm, respectively for extinction ratios larger than 10 dB. The multifunctional polarization beam splitter with an ultra-short fiber length and broad bandwidth improves the sensing performance in comparison with single-function devices and our results provide insights into the design of beam splitters with multiple functions.

Research Area(s)

  • Coupling length, Extinction ratio, Photonic crystal fiber, Polarization beam splitter

Citation Format(s)

Multi-functional gallium arsenide photonic crystal polarization splitter with a gold core. / Liu, Chao; An, Sinuo; Lv, Jingwei; Yang, Lin; Wang, Famei; Liu, Qiang; Li, Xianli; Su, Weiquan; Sun, Tao; Chu, Paul K.

In: Modern Physics Letters B, Vol. 35, No. 14, 2150229, 20.05.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review