Rayleigh crosstalk in long cascades of distributedunsaturated Raman amplifiers
- 10 June 1999
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 35 (12) , 997-998
- https://doi.org/10.1049/el:19990672
Abstract
Rayleigh crosstalk caused by the double Rayleigh reflection of a signal is investigated in long systems consisting of distributed Raman amplifiers. A simple equation for the crosstalk-to-signal ratio is presented and it is shown that bidirectional pumping reduces crosstalk. Power penalties arising from the crosstalk are evaluated using a Gaussian crosstalk model.Keywords
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