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Application of preemphasis to achieve flat output OSNR in time-varying channels in cascaded EDFAs without equalization
- 1.0303779 - URE-Y 20010028 RIV US eng J - Journal Article
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
R&D Projects: GA ČR GA102/99/0393
Institutional research plan: CEZ:AV0Z2067918
Keywords : optical communication * wavelength division multiplexing * erbium * optical fibre amplifiers
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 2.014, year: 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.
Permanent Link: http://hdl.handle.net/11104/0113963
Number of the records: 1