Conference paper
Thermal effects in Yb-doped double-cladding Distributed Modal Filtering rod-type fibers
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.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2012 |
| Pages: | 1-4 |
| Proceedings: | 14th International Conference on Transparent Optical Networks (ICTON) |
| ISBN: | 146732227X , 146732227x , 1467322288 , 1467322296 , 9781467322270 , 9781467322287 and 9781467322294 |
| ISSN: | 21612064 and 21612056 |
| Types: | Conference paper |
| DOI: | 10.1109/ICTON.2012.6253896 |
| ORCIDs: | Jørgensen, Mette Marie , Lægsgaard, Jesper and Broeng, Jes |
Atmospheric modeling DMF fiber Frequency modulation Heating Optical fiber amplifiers Photonic crystal fibers Refractive index Yb-doped double-cladding fiber blue-shift distributed modal filtering rod-type fibers double-cladding photonic crystal fiber finite element analysis finite element method high-order mode suppression holey fibres optical design techniques optical fibre cladding optical fibre filters photonic crystals refractive index single-mode bandwidth narrowing single-mode regime temperature distribution thermally-induced index change thermally-induced refractive index change thermo-optical effect thermo-optical effects wavelength 1030 nm to 1064 nm ytterbium
