Design of a compact photonic-crystal-based polarizing beam splitter

Tao Liu, Armis R. Zakharian, Mahmoud Fallahi, Jerome V Moloney, Masud Mansuripur

Research output: Contribution to journalArticle

106 Citations (Scopus)

Abstract

A compact polarizing beam splitter based on a photonic crystal (PC) directional coupler with a triangular lattice of air holes is designed and simulated. In the employed PC structure, transverse-electric (TE) light is confined with the photonic bandgap effect, while transverse-magnetic (TM) light is guided through an index-like effect. Due to the different guiding mechanisms, TM and TE light have strikingly different beat lengths, which is utilized to separate the two polarizations in a directional coupler no longer than 24.2 μm. The two-dimensional finite-difference time-domain method of computation is used to evaluate the device performance. The extinction ratios are found to be around 20 dB for both TE and TM polarized light.

Original languageEnglish (US)
Pages (from-to)1435-1437
Number of pages3
JournalIEEE Photonics Technology Letters
Volume17
Issue number7
DOIs
StatePublished - Jul 2005

Fingerprint

beam splitters
Photonic crystals
Directional couplers
directional couplers
photonics
crystals
Finite difference time domain method
Light polarization
finite difference time domain method
Photonics
polarized light
synchronism
extinction
Energy gap
Crystal structure
Polarization
crystal structure
air
polarization
Air

Keywords

  • Optical waveguides
  • Photonic crystals (PCs)
  • Polarizing beam splitters (PBSs)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

Design of a compact photonic-crystal-based polarizing beam splitter. / Liu, Tao; Zakharian, Armis R.; Fallahi, Mahmoud; Moloney, Jerome V; Mansuripur, Masud.

In: IEEE Photonics Technology Letters, Vol. 17, No. 7, 07.2005, p. 1435-1437.

Research output: Contribution to journalArticle

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