Abstract

In soliton transmission systems with bandwidth-limited amplifications, solitons tend to be destroyed during long-distance propagation owing to the interaction with linear dispersive waves, which are generated from solitons by the filtering and amplified by the excess gain around the filter center frequency. Recently Kodama et al. [Electron. Lett. 28, 1981 (1992)] suggested that the instability may be suppressed by introducing amplifiers with nonlinear gain, or gain and saturable absorption in combination. We demonstrate numerically the validity of using nonlinear gain to stabilize soliton transmissions where the filters are incorporated to reduce the Gordon–Haus frequency shift.

© 1993 Optical Society of America

Reduction and suppression of soliton interactions by bandpass filters

Yuji Kodama and Stefan Wabnitz
Opt. Lett. 18(16) 1311-1313 (1993)

Interpretation of the effect of reduction of soliton interaction by bandwidth-limited amplification

V. V. Afanasjev
Opt. Lett. 18(10) 790-792 (1993)

Suppression of noise accumulation in bandwidth-limited soliton transmission by means of nonlinear loop mirrors

Masayuki Matsumoto, Hiroki Ikeda, and Akira Hasegawa
Opt. Lett. 19(3) 183-185 (1994)

Simulations to demonstrate reduction of the Gordon–Haus effect

D. Marcuse
Opt. Lett. 17(1) 34-36 (1992)

Enhanced sideband instability in soliton transmissions with semiconductor optical amplifiers

I. M. Uzunov, M. Gölles, and F. Lederer
Opt. Lett. 22(18) 1406-1408 (1997)