Application of preemphasis to achieve flat output OSNR in time-varying channels in cascaded EDFAs without equalization

0303779 - URE-Y 20010028 RIV US eng J - Článek v odborném periodiku
Menif, M. - Rusch, L. A. - Karásek, Miroslav
Application of preemphasis to achieve flat output OSNR in time-varying channels in cascaded EDFAs without equalization.
Journal of Lightwave Technology. Roč. 19, č. 10 (2001), s. 1440-1452. ISSN 0733-8724. E-ISSN 1558-2213
Grant CEP: GA ČR GA102/99/0393
Výzkumný záměr: CEZ:AV0Z2067918
Klíčová slova: optical communication * wavelength division multiplexing * erbium * optical fibre amplifiers
Kód oboru RIV: BH - Optika, masery a lasery
Impakt faktor: 2.014, rok: 2001

We present a new method for optical signal-to noise ratio (OSNR) equalization of wavelength division multiplexed (WDM) channels at the end of a cascade of several erbium-doped amplifiers (EDFAs) by use of preemphasis, as well as the proper chice of EDFA design parameters. Identical OSNR at the end of the cascade ensures better signal detection and quality of service. The dynamics of the equalizing method have been demonstrated by simulation for single- and double-stage amplifier design.
Trvalý link: http://hdl.handle.net/11104/0113963