Quantum noise of damped N-solitons

The photon-number statistics of damped higher-order optical solitons are st udied numerically, using cumulant-expansion techniques in Gaussian approxim ation. The analysis is given in both the time domain and the frequency doma in. Introducing appropriate filtering, it is shown that the photon-number n oise can be strongly nonclassically correlated to each other. In particular , filter optimization is performed in order to observe strong sub-Poissonia n statistics and strong nonclassical correlations. (C) 2000 Elsevier Scienc e B.V. All rights reserved.