Collision-induced time shift of a dispersion-managed soliton and its minimization in wavelength-division-multiplexed transmission
15 August 2003
The formula for the time shift of a dispersion-managed soliton that results from its collision with other solitons in different channels consists of two terms, one related to the frequency shift during the collision, and the other related to the residual frequency shift after the collision.
It is found that there exists an optimal relative delay between pulses in adjacent channels after each dispersion-managed span that balances the contributions from the two terms and minimizes the overall time shift, leading to a substantial improvement in transmission performance.