All-Glass Single-Mode Leakage Channel Microstructured Optical Fibers with Large Mode Area and Low Bending Loss


The paper presents the results of theoretical and experimental studies of all-glass leakage channel microstructured optical fibers (MOFs) with a large mode area and low bending losses. These MOFs contain two layers of fluorine-doped silica glass elements with a reduced refractive index, different diameters, and different distances between them. A numerical analysis of the properties of these MOFs was performed using the finite element method. The leakage losses for the fundamental and higher-order modes were calculated in the spectral range from 0.65 μm to 1.65 μm. Simulation results show that the proposed MOF design allows for single-mode guidance in the spectral range from 0.92 μm to 1.21 μm with a bending radius of down to 0.08 m. The measured losses of the fabricated MOF with a core diameter of 22.5 μm and a bending radius of 0.1 m were less than 0.1 dB/m in the spectral range from 0.9 μm to 1.5 μm. It is demonstrated that the segments of this MOF longer than 5 m are single-mode.

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Divisions: College of Engineering & Physical Sciences
Additional Information: Copyright © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
Uncontrolled Keywords: finite element method,large mode area fiber,leakage channel fiber,microstructured optical fiber,photonic crystal fiber,single-mode optical fiber,Atomic and Molecular Physics, and Optics,Instrumentation,Radiology Nuclear Medicine and imaging
Publication ISSN: 2304-6732
Last Modified: 18 Jul 2024 07:25
Date Deposited: 03 May 2023 15:18
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Related URLs: https://www.mdp ... 4-6732/10/4/465 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2023-04
Published Online Date: 2023-04-19
Accepted Date: 2023-04-17
Authors: Denisov, Alexander
Dvoyrin, Vladislav
Kosolapov, Alexey
Likhachev, Mikhail
Velmiskin, Vladimir
Zhuravlev, Sergey
Semjonov, Sergey



Version: Published Version

License: Creative Commons Attribution

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