2012/07/25 by Jean‐Charles Beugnot, Jean-Charles Beugnot, Vincent Laude
Engineering · Physics and Astronomy · #Acoustic Wave Resonator Technologies #Mechanical and Optical Resonators #Photonic and Optical Devices #physics.class-ph #physics.optics
paper · pdf · doi:10.1103/physrevb.86.224304
arxiv created 2012/07/25 · openalex publication_date 2012/12/26 · arxiv updated 2013/09/23 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We investigate the generation of acoustic phonons in optical fibers via electrostriction from coherent optical waves. Solving the elastodynamic equation subject to the electrostrictive force, we are able to reproduce the experimental spectra found in standard and photonic crystal fibers. We discuss the two important practical cases of forward interaction, dominated by elastic resonances of the fiber, and backward interaction, for which an efficient mechanism of phonon guidance is found. The last result describes the formation of the coherent phonon beam involved in stimulated Brillouin scattering.