Quasi-phase-matched faraday rotation in semiconductor waveguides with a magnetooptic cladding for monolithically integrated optical isolators

David C. Hutchings, Barry M. Holmes, Cui Zhang, Prabesh Dulal, Andrew D. Block, Sang Yeob Sung, Nicholas C.A. Seaton, Bethanie J.H. Stadler

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Strategies are developed for obtaining nonreciprocal polarization mode conversion, also known as Faraday rotation, in waveguides in a format consistent with silicon-on-insulator or III-V semiconductor photonic integrated circuits. Fabrication techniques are developed using liftoff lithography and sputtering to obtain garnet segments as upper claddings, which have an evanescent wave interaction with the guided light. A mode solver approach is used to determine the modal Stokes parameters for such structures, and design considerations indicate that quasi-phase-matched Faraday rotation for optical isolator applications could be obtained with devices on the millimeter length scale.

Original languageEnglish (US)
Article number6671937
JournalIEEE Photonics Journal
Volume5
Issue number6
DOIs
StatePublished - Dec 2013

Keywords

  • Magnetophotonics
  • integrated photonic systems
  • waveguide devices

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