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ISSN: 1023-5086


ISSN: 1023-5086

Scientific and technical

Opticheskii Zhurnal

A full-text English translation of the journal is published by Optica Publishing Group under the title “Journal of Optical Technology”

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DOI: 10.17586/1023-5086-2021-88-11-80-89

УДК: 535.015, 681.7.068

Structural characteristics of internal microcavities produced in optical fiber via the fuse effect

For Russian citation (Opticheskii Zhurnal):

Конин Ю.А., Щербакова В.А., Булатов М.И., Мальков Н.А., Луценко А.С., Стариков С.С., Грачев Н.А., Перминов А.В., Петров А.А. Исследование характеристик оптического волокна с внутренней структурой микронеоднородностей, сформированной с помощью эффекта плавления  // Оптический журнал. 2021. Т. 88. № 11. С. 80–89.


Konin Yu.A., Scherbakova V.A., Bulatov M.I., Malkov N.A., Lutsenko A.S., Starikov S.S., Grachev N.A., Perminov A.V., Petrov A.A. Structural characteristics of internal microcavities produced in optical fiber via the fuse effect  [in Russian] // Opticheskii Zhurnal. 2021. V. 88. № 11. P. 80–89.

For citation (Journal of Optical Technology):

Yu. A. Konin, V. A. Scherbakova, M. I. Bulatov, N. A. Malkov, A. S. Lucenko, S. S. Starikov, N. A. Grachev, A. V. Perminov, and A. A. Petrov, "Structural characteristics of internal microcavities produced in optical fiber via the fuse effect," Journal of Optical Technology. 88(11), 672-677 (2021).


We discuss the internal structure of microcavities in single-mode and multi-mode acrylate- and polyimide-clad optical fibers due to fusion occurring as a plasma spark propagates through the core. The calculated plasma propagation speed was 61±2cm/s. The structure of the microcavities was studied from the end and side surfaces of the fibers, and the microcavities had sizes of 2.7±0.5µm and 5.6±0.7µm, respectively, when viewed from each of these two directions. The ultimate strengths of damaged and undamaged single-mode fibers were determined via two-point bending and the axial tension method. It was experimentally determined that following the damage to the core, the flexure strength of fibers with each type of protective coating decreased by 5%–8%, while the tensile strength of the fibers with polyimide coating decreased by 72%–83%, and the tensile strength of the fibers with acrylate coating decreased by 26%–30%.


fiber optics, single-mode and multi-mode optical fibers, optical fiber properties, optical fiber strength, optical fiber fuse effect


This research was carried out with the financial support of the Ministry of Science and Higher Education of the Russian Federation in the framework of the program of activities of the Perm Scientific and Educational Center “Rational Subsoil Use.”

OCIS codes: 060.2400, 050.2230


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