Control of Excitation of Cladding Modes by Tapering an Insertion of Special Fiber

A method for controlling the excitation of cladding modes by tapering special fiber insertions made of SM450 and coreless fibers is proposed. The coupling coefficients between the core mode and the cladding modes of the tapered fiber insertion are calculated. For the calculation, changes in the effe...

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Main Authors: Diomid D. Bakurov, Oleg V. Ivanov
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/7/2498
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author Diomid D. Bakurov
Oleg V. Ivanov
author_facet Diomid D. Bakurov
Oleg V. Ivanov
author_sort Diomid D. Bakurov
collection DOAJ
description A method for controlling the excitation of cladding modes by tapering special fiber insertions made of SM450 and coreless fibers is proposed. The coupling coefficients between the core mode and the cladding modes of the tapered fiber insertion are calculated. For the calculation, changes in the effective refractive indices and phases of the fiber core and in the cladding modes upon tapering are found. The field distribution of the core mode of the standard fiber transmitted through fiber insertion is obtained. The transmission characteristics of insertions of SM450 and coreless fibers during tapering are simulated and compared with the experiment. The possibility of controlling the transmission and excitation of various cladding modes is confirmed experimentally.
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spelling doaj.art-bc523453e3d34a8c8a9e3fa2c061fecc2023-11-21T14:06:57ZengMDPI AGSensors1424-82202021-04-01217249810.3390/s21072498Control of Excitation of Cladding Modes by Tapering an Insertion of Special FiberDiomid D. Bakurov0Oleg V. Ivanov1Ulyanovsk Branch of Kotel’nikov Institute of Radio Engineering and Electronics of Russian Academy of Sciences, Ulitsa Goncharova 48, 432071 Ulyanovsk, RussiaUlyanovsk Branch of Kotel’nikov Institute of Radio Engineering and Electronics of Russian Academy of Sciences, Ulitsa Goncharova 48, 432071 Ulyanovsk, RussiaA method for controlling the excitation of cladding modes by tapering special fiber insertions made of SM450 and coreless fibers is proposed. The coupling coefficients between the core mode and the cladding modes of the tapered fiber insertion are calculated. For the calculation, changes in the effective refractive indices and phases of the fiber core and in the cladding modes upon tapering are found. The field distribution of the core mode of the standard fiber transmitted through fiber insertion is obtained. The transmission characteristics of insertions of SM450 and coreless fibers during tapering are simulated and compared with the experiment. The possibility of controlling the transmission and excitation of various cladding modes is confirmed experimentally.https://www.mdpi.com/1424-8220/21/7/2498optical fibercladding modefiber insertionmode couplingtaper
spellingShingle Diomid D. Bakurov
Oleg V. Ivanov
Control of Excitation of Cladding Modes by Tapering an Insertion of Special Fiber
Sensors
optical fiber
cladding mode
fiber insertion
mode coupling
taper
title Control of Excitation of Cladding Modes by Tapering an Insertion of Special Fiber
title_full Control of Excitation of Cladding Modes by Tapering an Insertion of Special Fiber
title_fullStr Control of Excitation of Cladding Modes by Tapering an Insertion of Special Fiber
title_full_unstemmed Control of Excitation of Cladding Modes by Tapering an Insertion of Special Fiber
title_short Control of Excitation of Cladding Modes by Tapering an Insertion of Special Fiber
title_sort control of excitation of cladding modes by tapering an insertion of special fiber
topic optical fiber
cladding mode
fiber insertion
mode coupling
taper
url https://www.mdpi.com/1424-8220/21/7/2498
work_keys_str_mv AT diomiddbakurov controlofexcitationofcladdingmodesbytaperinganinsertionofspecialfiber
AT olegvivanov controlofexcitationofcladdingmodesbytaperinganinsertionofspecialfiber