Stability and optimization of dispersion-managed soliton control

Abstract

Dispersion-managed solitons with in-line all-optical regeneration are shown to be subject to amplitude and timing-jitter instabilities. We identify and discuss the different natures of these instabilities by means of a linear stability analysis, which is in good agreement with the full numerical solutions of the governing equations. Stable pulse propagation can be achieved through appropriate choices of dispersion map and pulse energy.

Optical regeneration at 40 Gb/s in dispersion-managed transmission lines with in-line synchronous modulators

“…The chirp at the modulator can also affect the stability of pulse timing. Improper chirp at the modulator can make positive feedback, leading to the rise of the time shift of the pulse [12], [13]. Note that the stability analysis presented in Fig.…”

“…Taking advantage of the simple semitheoretical methods well developed for DM solitons, the system and input pulse parameters are optimized before applying full numerical modeling. The linear stability analysis based on the variational approach [22], [23], [27] has been successfully used to investigate DM soliton transmission [12], [13], [24]- [26]. The advantage of the method is a capability to predict both timing and energy fluctuations of the carrier pulse and the growth of the background noise in the zero time slots.…”

Average and local dispersion double decreasing densely dispersion-managed fiber transmission systems

“…In recent years, dispersion-managed (DM) soliton plays an important role in optical communication, with alternating anomalous and normal group-velocity dispersion in optical fiber links [1,2] . DM soliton demonstrates a series of significant advantages, such as, less influenced by Gorden-Hause timing jitter, suppressed four-wave mixing in wavelength-division multiplexing (WDM) system, possessing higher pulse energy than conventional soliton in a uniform fiber with the same averaged-path dispersion.…”