Optical fibre with an offset core for SBS suppression

Abstract To raise the stimulated Brillouin scattering (SBS) threshold, we have fabricated an optical fibre having a core heavily doped with germanium oxide and displaced from the fibre axis. A method has been proposed for broadening the SBS gain spectrum of the fibre by winding it onto a small-diame...

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Bibliographic Details
Published inQuantum electronics (Woodbury, N.Y.) Vol. 51; no. 3; pp. 228 - 231
Main Authors Khudyakov, M.M., Alekseev, V.V., Lipatov, D.S., Guryanov, A.N., Temyanko, V., Bubnov, M.M., Likhachev, M.E.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2021
Subjects
Germanium
Germanium oxides
Optical fibers
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Summary:Abstract To raise the stimulated Brillouin scattering (SBS) threshold, we have fabricated an optical fibre having a core heavily doped with germanium oxide and displaced from the fibre axis. A method has been proposed for broadening the SBS gain spectrum of the fibre by winding it onto a small-diameter spool, and a broadening of the spectrum by 5.4 dB has been demonstrated, which indicates an increase in SBS threshold by 4.1 dB.
ISSN:1063-7818
1468-4799
DOI:10.1070/QEL17429