Inter-Mode Forward Brillouin Scattering in Nanofibers

We investigate the inter-mode forward stimulated Brillouin scattering (FSBS) in nanofibers in this article. An extraordinary high Brillouin peak value is predicted for the interaction between the HE 11 and the high-order optical mode (TE 01 ). The corresponding excited acoustic mode (R 11 ) has the...

Full description

Saved in:
Bibliographic Details
Published in:Journal of lightwave technology 2020-12, Vol.38 (24), p.6911-6917
Main Authors: Cao, Min, Huang, Lin, Tang, Min, Mi, Yuean, Jian, Wei, Ren, Wenhua, Ren, Guobin
Format: Article
Language:English
Subjects:
Acoustic velocity
Acoustics
Force
inter-mode interaction
nanofiber and Brillouin gain
Nanofibers
Optical fibers
Optical pumping
Optical scattering
Phase velocity
Scattering
Silicon dioxide
Stimulated Brillouin scattering
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigate the inter-mode forward stimulated Brillouin scattering (FSBS) in nanofibers in this article. An extraordinary high Brillouin peak value is predicted for the interaction between the HE 11 and the high-order optical mode (TE 01 ). The corresponding excited acoustic mode (R 11 ) has the characteristics of the relatively uniform large normalized displacements and the phase velocity less than the shear acoustic velocity of silica, which completely differs from the transverse acoustic mode in the intra-mode FSBS process of the HE 11 . The Brillouin peak value by the contribution of R 11 can reach 260.5 W −1 m −1 at a frequency of 0.1905 GHz, which is at least an order of magnitude higher than the maximum peak value in the intra-mode forward Brillouin gain spectrum (BGS). Moreover, for a nanofiber radius of 0.57 to 1 μm, the contribution of R 11 is always the most prominent to the BGS. This work provides further insight into phonon-photon coupling in nanofibers.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2020.3017192