Abstract
We study stimulated Brillouin scattering (SBS) in a few-mode graded-index fiber in both the intermodal and intramodal configurations. A multi-peak Brillouin gain spectrum (BGS) is observed in both types of SBS interactions owing to the presence of higher-order acoustic modes, whose contribution to the Brillouin gain is found to depend on the modal composition of the pump beam. The numerically simulated results match well with the experimentally observed multi-peak BGS in both the intramodal and intermodal cases. The linewidth of the individual BGS peaks are extracted from a multi-Lorentzian fit to the data and are found to be significantly different for different modal compositions of the pump beam.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
