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14 July 2000 Stability and compression of bandwidth-limited amplified fiber solitons
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Proceedings Volume 3944, Physics and Simulation of Optoelectronic Devices VIII; (2000)
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
We investigate, both analytically and numerically, the effectiveness of the nonlinear gain to suppress the background instability in bandwidth-limited soliton transmission. Different types of analytical solutions of the complex Ginzburg-Landau equation (CGLE), namely solutions with fixed amplitude and solutions with arbitrary amplitude, are discussed. The conditions for the stable pulse propagation are defined within the domain of validity of the soliton perturbation theory. The CGLE is solved numerically assuming various input waveforms with different phase profiles, amplitudes and durations. Relatively stable pulse propagation can be achieved over long distances by the use of suitable combination of linear and nonlinear gains. For the cubic CGLE, truly stable propagation of arbitrary amplitude solitons can be achieved in a system with purely nonlinear gain. A new soliton compression effect is demonstrated both for fixed- amplitude and for arbitrary-amplitude solitons. This compression can be particularly significant when the system parameters are chosen near the singularity of the fixed- amplitude solution.
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Sofia C. V. Latas and Mario F. S. Ferreira "Stability and compression of bandwidth-limited amplified fiber solitons", Proc. SPIE 3944, Physics and Simulation of Optoelectronic Devices VIII, (14 July 2000);

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