Simulations of Pump Absorption in Tandem-Pumped Octagon Double-Clad Fibers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F21%3A00553146" target="_blank" >RIV/67985882:_____/21:00553146 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/JPHOT.2021.3060857" target="_blank" >https://doi.org/10.1109/JPHOT.2021.3060857</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/JPHOT.2021.3060857" target="_blank" >10.1109/JPHOT.2021.3060857</a>
Alternative languages
Result language
angličtina
Original language name
Simulations of Pump Absorption in Tandem-Pumped Octagon Double-Clad Fibers
Original language description
The cladding pumping within a double-clad fiber structure is an effective technique to convert high-power multimode beam into high-power, almost diffraction limited beam. Since the pump efficiency is limited by the presence of higher skew-ray modes, geometrical perturbations are used to scramble the modes and to achieve a higher overlap of the electromagnetic field with the doped core. In this paper, the combined effect of fiber coiling and twisting is investigated in the double-clad fiber structure with the octagonal shape of an inner cladding. Electromagnetic field propagation through fibers with different cross-section areas, bending radii and twisting rates is numerically simulated using finite element beam propagation method. Holmium-doped double-clad fiber pumped in tandem configuration at wavelength 1950 nm is selected as an example. Nontrivial dependence of pump absorption on bending radius with the presence of local maxima is revealed. The observed impact of fiber coiling and twisting increases with the size of the cross-section area of the inner cladding
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Photonics Journal
ISSN
1943-0655
e-ISSN
1943-0647
Volume of the periodical
13
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
1500314
UT code for WoS article
000685529500004
EID of the result in the Scopus database
2-s2.0-85101780051