PROJECT DETAILS
Name: Thulium doped silica fibres for fibre amplifiers
Sponsor: Grant Agency of the Academy of Sciences
Principal investigator: Pavel Peterka, Ph.D.
Member: Pavel Honzátko, Ph.D.; Jiří Kaňka, Ph.D.; Miroslav Karásek, DSc.; Ivan Kašík, Ph.D.; Vlastimil Matějec, Ph.D.; Jan Mrázek, Ph.D.; Ondřej Podrazký, Ph.D.; Jana Proboštová-Skokánková, MSc.; Jiří Slánička
From: 2005-01-01
To: 2007-12-31
Promising candidates for optical amplification in the S-band are the Thulium-doped fibre amplifiers (TDFA's). Presently a majority of the TDFA modules is based on fluoride Tm-doped fibres with low-phonon energy. However, usage of fluoride fibres results in difficulties with fabrication and robustness of the host material and they are incompatible with standard telecommunication fibres. In the project, silica-based TDF's with novel composition of the fiber core will be studied. Comprehensive spectrally, spatially and time resolved numerical model of the TDF will be developed. Several methods for modification of the local environment of thulium will be investigated. Prepared TDF's will be characterized spectroscopically using Judd-Ofelt analysis and fluorescence decay measurements. The numerical model will be used for explanation of energy upconversion processes in Thulium and for optimization of TDFA parameters. Performance of the developed fibres in experimental TDFA will be tested.