Novel designs for integrating YIG/air photonic crystal slab polarizers with waveguide Faraday rotators

Samir K. Mondal, Bethanie J Stadler

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Photonic crystal slab waveguides (PCSWs), based on the novel magnetooptic material, yttrium iron garnet (YIG), have been designed in order to enable fully integrated/optical isolators. The PCSWs possess fundamental bandgaps for even (transverse-electric (TE)-like) modes around the wavelength of 1.33 μm. Propagation losses for both the TE-like and transverse-magnetic (TM)-like polarizations with various orientations have been investigated numerically using partial-wave analysis and a three-dimensional finite-difference time-domain method. The resulting PCSW designs can be used to isolate TE-like modes from TM-like modes and vice versa with isolation ratios of - 60 and - 40 dB, respectively. One of the main benefits of these designs is that they provide interface-free polarizers for the garnet waveguides. The designs can easily be extended to 1.55 μm for further versatility.

Original languageEnglish (US)
Pages (from-to)127-129
Number of pages3
JournalIEEE Photonics Technology Letters
Volume17
Issue number1
DOIs
StatePublished - Jan 1 2005

Keywords

  • Integrated optical isolator
  • Magnetooptic material
  • Photonic bandgap
  • Photonic crystal (PC)

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