A Study of the Optical Properties of a Multimode Silica Optical Fiber with a Reflective Shell from a Fluorinated Thermoplastic Polymer
- Authors: Makovetskii A.A.1, Zamyatin A.A.1, Ryakhovskii D.V.1
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Affiliations:
- Kotel’nikov Institute of Radio Engineering and Electronics, Fryazino Branch, Russian Academy of Sciences
- Issue: Vol 127, No 3 (2019)
- Pages: 535-540
- Section: Fiber and Integrated Optics
- URL: https://ogarev-online.ru/0030-400X/article/view/166098
- DOI: https://doi.org/10.1134/S0030400X19090182
- ID: 166098
Cite item
Abstract
The optical properties of a silica–polymer optical fiber with a light-guide core with a diameter of 430 μm and a reflecting shell with a thickness of 70 μm from a thermoplastic copolymer of tetrafluoroethylene with ethylene of Tefzel brand have been experimentally studied. The polymer coating is applied to a silica fiber directly in the fiber draw apparatus by the die method from a thermoplastic melt. The optical losses of the drawn fiber and the numerical aperture and its dependence on the fiber length are measured. It is established that a light propagating through the fiber is noticeably scattered by the reflecting shell, which is associated with the crystallinity of the polymer. The distribution of the scattered radiation intensity along the fiber axis and the indicatrix of radiation scattering by the shell are measured. The relative contributions of scattering and absorption of light in the shell to the total optical losses of the fiber are estimated. The possible use of optical fibers of this structure in laser medicine is considered.
About the authors
A. A. Makovetskii
Kotel’nikov Institute of Radio Engineering and Electronics, Fryazino Branch, Russian Academy of Sciences
Author for correspondence.
Email: maz226@ms.ire.rssi.ru
Russian Federation, Fryazino, Moscow oblast, 141190
A. A. Zamyatin
Kotel’nikov Institute of Radio Engineering and Electronics, Fryazino Branch, Russian Academy of Sciences
Email: maz226@ms.ire.rssi.ru
Russian Federation, Fryazino, Moscow oblast, 141190
D. V. Ryakhovskii
Kotel’nikov Institute of Radio Engineering and Electronics, Fryazino Branch, Russian Academy of Sciences
Email: maz226@ms.ire.rssi.ru
Russian Federation, Fryazino, Moscow oblast, 141190
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