Thermal effects in Yb-doped double-cladding Distributed Modal Filtering rod-type fibers

Publication: Research - peer-reviewArticle in proceedings – Annual report year: 2012

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The effects of thermally-induced refractive index change in Yb-doped Distributed Modal Filtering (DMF) photonic crystal fibers are investigated, where high-order mode suppression is obtained by resonant coupling with high index elements in the cladding. The temperature distribution on the fiber cross-section is calculated with an analytical model, for different pump power values. The consequent refractive index change, due to the thermo-optical effect, is applied to the cross-section of the DMF fiber, whose guiding properties are studied with a full-vector modal solver based on the finite element method. A DMF fiber design, which is single-mode in the 1030 nm–1064 nm region, is considered, and the effects of thermal load on the transmission characteristics are evaluated. Results show a blue-shift of the single-mode window and the single-mode bandwidth narrowing as the absorbed pump power becomes higher.
Original languageEnglish
Title of host publication2012 14th International Conference on Transparent Optical Networks (ICTON)
Number of pages4
PublisherIEEE
Publication date2012
ISBN (print)978-1-4673-2228-7
ISBN (electronic)978-1-4673-2227-0
DOIs
StatePublished

Conference

Conference14th International Conference on Transparent Optical Networks (ICTON)
CountryUnited Kingdom
CityCoventry
Period02/07/1205/07/12
Internet addresshttp://www.nit.eu/icton-2012
CitationsWeb of Science® Times Cited: No match on DOI

Keywords

  • Double-cladding photonic crystal fiber, Thermally-induced index change, Single-mode regime
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