Journal
JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 40, Issue 22, Pages 7456-7463Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2022.3202520
Keywords
Probes; Scattering; Optical fiber sensors; Optical fiber networks; Acoustic waves; Optical pumping; Optical fiber cables; Optical fiber sensors; optical fiber testing; stimulated brillouin scattering
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This paper focuses on the spectral manipulation of Brillouin gain in two-mode few-mode fiber (FMF) by utilizing modal Brillouin interaction. Experiments demonstrated accurate measurement of the desired intra-modal Brillouin gain spectrum with reduced influence from inter-modal crosstalk.
This paper focuses on the spectral manipulation of Brillouin gain in two-mode few-mode fiber (FMF); modal Brillouin interaction is realized by launching a 2nd probe beam. With this technique, we can obtain the desired Brillouin gain spectrum in each mode by modal Brillouin interaction, which involves the modal Brillouin loss and the superposition of modal Brillouin acoustic waves. Experiments demonstrate accurate measurement of the desired intra-modal Brillouin gain spectrum with reduced influence from inter-modal crosstalk.
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