Formal selection rules for Brillouin scattering in integrated waveguides and structured fibers

C. Wolff*, M. J. Steel, C. G. Poulton

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)
18 Downloads (Pure)

Abstract

We derive formal selection rules for Stimulated Brillouin Scattering (SBS) in structured waveguides. Using a group-theoretical approach, we show how the waveguide symmetry determines which optical and acoustic modes interact for both forward and backward SBS. We present a general framework for determining this interaction and give important examples for SBS in waveguides with rectangular, triangular and hexagonal symmetry. The important role played by degeneracy of the optical modes is illustrated. These selection rules are important for SBS-based device design and for a full understanding the physics of SBS in structured waveguides.

Original languageEnglish
Pages (from-to)32489-32501
Number of pages13
JournalOptics Express
Volume22
Issue number26
DOIs
Publication statusPublished - 29 Dec 2014

Bibliographical note

This paper was published in Optics express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-22-26-32489. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Keywords

  • INDUCED MODAL CHARACTERISTICS
  • PHOTONIC CRYSTAL FIBERS
  • ACOUSTIC PHONONS
  • CHIP
  • LASER

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