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Chromatic dispersion measurement of optical fibres using interferometric technique
Dymák, Pavel ; Peterka, Pavel
Research report deals with measurement of chromatic dispersion of singlemode optical fibres using interferometric technique at IREE AS CR in Prague. The document describes in details all components of measurement setup, initial setting up and measurement procedure, using of assembled control programs and the measurement data processing too. Several tips and practical recommendations complete the report based on many performed experiments.
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Optimal fibre cross section shape for cladding-pumped fibre lasers and amplifiers
Peterka, Pavel ; Kašík, Ivan ; Matějec, Vlastimil
The efficiency of the cladding-pumped fibre amplifier critically depends on the coupling of the pump radiation from the inner cladding to the single mode signal core, doped with rare earth ions /Er, Yb, .../. This coupling depends on the cross sectional shape of the inner cladding. In the paper, the conditions of the optimal shape are defined. Verification of these conditions in case of several specific examples, including experimental fibre prepared in the author's laboratory, is shown.
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