|
|
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.
|
|
|
Microstructure optical fibres
Kaňka, Jiří ; Honzátko, Pavel ; Matějec, Vlastimil ; Kašík, Ivan ; Martan, Tomáš
A review of microstructure optical fibers, their use and methods of preparation is presented. Two classes of microstructure optical fibers in accordance with wave guiding mechanism are introduced. Unique dispersion properties and their structure dependence are discussed. Highly nonliner fibers, large mode area fibers and highly birefringent fibers are reported. Finally, the research carried out IREE Prague is summarized.
|
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
guest ::
