Electrostriction and guidance of sound by light in optical fibers

Abstract

We investigate the generation of phonon wavepackets in optical fibers via electrostriction from coherent optical waves. Solving the elastodynamic equation subject to the electrostrictive force, we are able to reproduce 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 by light is found. The latter result describes the formation of the coherent phonon wavepacket involved in stimulated Brillouin scattering.

References in corpus (1)

• Coherent Control of Ultra-High Frequency Acoustic Resonances in Photonic Crystal Fibers

Cited by in corpus (8)

• Brillouin resonance broadening due to structural variations in nanoscale waveguides
• Large evanescently-induced Brillouin scattering at the surrounding of a nanofibre
• Time-dependent theory of optical electro- and magnetostriction
• Theoretical study on the stimulated Brillouin scattering in a sub-wavelength anisotropic waveguide: Acousto-optical coupling coefficients and effects of transverse anisotropies
• Spin-orbit interaction in nanofiber-based Brillouin scattering
• Stimulated Brillouin scattering from surface acoustic waves in sub-wavelength photonic microwires
• Elastic wave velocities in finitely pre-stretched soft fibers
• A perspective on inelastic light scattering spectroscopy for probing transport of collective acoustic excitations