. "optical communications; fibre optical amplifiers; Raman amplifiers; wavelength division multiplexin; time division multiplexing"@en . . . "optical communications" . "2005-01-01+01:00"^^ . "2009-05-04+02:00"^^ . . . "http://www.isvav.cz/projectDetail.do?rowId=1ET300670503"^^ . . "The aim of the project is to develop a numerical model of time division-multiplex (TDM) pumped Raman fibre amplifier a to perform detailed large-signal analysis of the advantages of TDM pumping with respect to convetional continuous wave (CW) pumping of Raman fibre amplifiers. The numerical model will be used for parameter optimization of wide-band Raman fibre amplifier with flat optical signal-to-noise (OSNR) ratio over the whole band of amplification. On the basis of the theoretical results a sample TDM pumped Raman fibre amplifier will be realised and and its parameters experimetally investigated and compared with CW pumped Raman fibre amplifier. The properties of the sample TDM pumped Raman amplifier will be verified in the optical link Prague-Brno of the CzechLight experimental network of the Czech national research and educational network of the CESNET for the transmission of wavelength division multiplexed 10 Gbit/s channels."@en . . . "2008-02-21+01:00"^^ . . "2008-12-31+01:00"^^ . . . "2"^^ . "Byl vytvo\u0159en soubor program\u016F pro numerickou anal\u00FDzu ramanovsk\u00FDch vl\u00E1knov\u00FDch zesilova\u010D\u016F s \u010Dasov\u011B multiplexovan\u00FDm \u010Derp\u00E1n\u00EDm. Pomoc\u00ED teoretick\u00FDch v\u00FDsledk\u016F byly zhotoveny 2 vzorky zesilova\u010De a \u010Dinnost ov\u011B\u0159ena na pokusn\u00E9 trase d\u00E9lky 238 km p\u0159enosem 20 kan\u00E1l\u016F."@cs . "C\u00EDlem projektu je vyvinout numerick\u00FD model ramanovsk\u00E9ho zesilova\u010De s \u010Dasov\u00FDm multiplexov\u00E1n\u00EDm \u010Derpac\u00EDch diod (TDM time division multiplexing) a s t\u00EDmto modelem prov\u00E9st podrobnou anal\u00FDzu p\u0159ednost\u00ED tohoto typu \u010Derp\u00E1n\u00ED v\u016F\u010Di dosud pou\u017E\u00EDvan\u00E9mu kontinu\u00E1ln\u00EDmu \u010Derp\u00E1n\u00ED ramanovsk\u00FDch zesilova\u010D\u016F. Numerick\u00FD model poslou\u017E\u00ED i k optimalizaci parametr\u016F tohoto typu zesilova\u010De s c\u00EDlem navrhnout \u0161irokop\u00E1smov\u00FD ramanmovsk\u00FD zesilova\u010D s konstantn\u00EDm pom\u011Br sign\u00E1l/\u0161um v cel\u00E9m p\u00E1smu zes\u00EDlen\u00ED. Na z\u00E1klad\u011B v\u00FDsledk\u016F teoretick\u00FDch anal\u00FDz bude realizov\u00E1n vzorek zesilova\u010De s TDM \u010Derp\u00E1n\u00EDm, budou prom\u011B\u0159eny jeho parametry a zesilova\u010D budu experiment\u00E1ln\u011B vyzkou\u0161en na trase Praha-Brno experiment\u00E1ln\u00ED s\u00EDt\u011B CzechLight \u010Desk\u00E9 n\u00E1rodn\u00ED v\u00FDzkumn\u00E9 a vzd\u011Bl\u00E1vac\u00ED s\u00EDt\u011B spole\u010Dnosti CESNET, z.s.p.o. p\u0159i p\u0159enosu vlnov\u011B multiplexovan\u00FDch tok\u016F s p\u0159enosovou rychlost\u00ED 10 Gbit/s." . . "0"^^ . "1ET300670503" . "Ramanovsk\u00E9 vl\u00E1knov\u00E9 zesilova\u010De s \u010Dasov\u011B multiplexovan\u00FDm \u010Derp\u00E1n\u00EDm" . "Raman fibre amplifiers with time-division multiplexed pumping"@en . . . . "1"^^ . . " Raman amplifiers" . " wavelength division multiplexin" . "14"^^ . " fibre optical amplifiers" . "A set of programs for numerical analysis of time-division multiplexed Raman fibre amplifiers was developed.On the basis of theoretical results 2 sample amplifiers were manufactured and verified the performance on a link of 238km transmitting 20 channels."@en . "14"^^ . . . .