Numerical Modeling of Pump Absorption in Coiled and Twisted Double-Clad Fibers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F16%3A00460234" target="_blank" >RIV/67985882:_____/16:00460234 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/16:00369334

Výsledek na webu

<a href="http://dx.doi.org/10.1109/JSTQE.2015.2490100" target="_blank" >http://dx.doi.org/10.1109/JSTQE.2015.2490100</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/JSTQE.2015.2490100" target="_blank" >10.1109/JSTQE.2015.2490100</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical Modeling of Pump Absorption in Coiled and Twisted Double-Clad Fibers

Popis výsledku v původním jazyce

We report the analysis of multimode pump absorption in double-clad rare-earth-doped fibers under realistic bending conditions. The finite-element beam-propagation method is used for the analysis. The fiber bending is approximated by the transformation of the refractive index profile of the fiber. Double-clad fibers of hexagonal, circular and stadium-like cross-sections are studied as examples. In addition, the double-clad waveguide structure of a two-fiber bundle is investigated. Simulations show that the bending effects cannot be neglected in double-clad fiber multimode pump propagation analysis and optimization. The reported rigorous numerical model opens new way to design double-clad fibers and to optimize the pump absorption efficiency. We show that high pump-absorption efficiency better than the ideal (ergodic) limit, can be achieved by simultaneous coiling and twisting of the double-clad fiber

Název v anglickém jazyce

Numerical Modeling of Pump Absorption in Coiled and Twisted Double-Clad Fibers

Popis výsledku anglicky

We report the analysis of multimode pump absorption in double-clad rare-earth-doped fibers under realistic bending conditions. The finite-element beam-propagation method is used for the analysis. The fiber bending is approximated by the transformation of the refractive index profile of the fiber. Double-clad fibers of hexagonal, circular and stadium-like cross-sections are studied as examples. In addition, the double-clad waveguide structure of a two-fiber bundle is investigated. Simulations show that the bending effects cannot be neglected in double-clad fiber multimode pump propagation analysis and optimization. The reported rigorous numerical model opens new way to design double-clad fibers and to optimize the pump absorption efficiency. We show that high pump-absorption efficiency better than the ideal (ergodic) limit, can be achieved by simultaneous coiling and twisting of the double-clad fiber

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Journal of Selected Topics in Quantum Electronics

ISSN

1077-260X

e-ISSN

—

Svazek periodika

22

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000366324400001

EID výsledku v databázi Scopus

2-s2.0-84963679880