Publication: Research - peer-review › Article in proceedings – Annual report year: 2012
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.
|Title of host publication||2012 14th International Conference on Transparent Optical Networks (ICTON)|
|Number of pages||4|
|State||Published - 2012|
|Conference||14th International Conference on Transparent Optical Networks (ICTON)|
|Period||02/07/2012 → 05/07/2012|
|Citations||Web of Science® Times Cited: No match on DOI|
- Double-cladding photonic crystal fiber, Thermally-induced index change, Single-mode regime
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