Periodic Dispersion Compensation Research Articles

Asymptotic breathing pulse in optical transmission systems with dispersion compensation

We study a nonlinear process of the formation of a breathing solitary wave in the optical transmission systems with periodic amplification and dispersion compensation. Results of our numerical simulations demonstrate remarkably stable asymptotic propagation of such breathing pulse over long distances. We have derived approximate equations describing pulse amplitude and width oscillations and found that results obtained by this approach are in good agreement with the results of direct numerical modeling on the short and middle distances. It is shown that asymptotic averaged pulses have a form typically close to a Gaussian shape. We have found numerically that an input pulse evolves asymptotically into a stable breathing structure. After the first stage of propagation, the input pulse emits radiation that spreads due to dispersion. The asymptotic structure that is formed realizes a balance between the main pulse and the radiative tail.

Periodic Dispersion Compensation of Soliton Wavelength Division Multiplexed Transmissions with Sliding Filters

We analyze the stability of sliding-filter guided, wavelength division multiplexed soliton transmission systems with a simple sawtooth map for the accumulated group-velocity dispersion. Transmission resonances induced by asymmetric soliton collisions at the amplifiers may be suppressed by the insertion of dispersion compensating fibers. We estimate the margins for the system parameters that permit stable transmission of 4×20 Gbit/s signals over transoceanic distances.

20-Gb/s single-channel soliton transmission over 9000 km without inline filters

20 Gb/s single-channel soliton signal has been successfully transmitted over 9000 km without inline filters, for the first time, using periodic dispersion compensation. The Gordon-Haus timing jitter at 9000 km was reduced by a factor of more than 3 just with the dispersion management.

Reduced Gordon-Haus jitter due to enhanced powersolitons in strongly dispersion managed systems

The authors show that the Gordon-Haus jitter experienced in an optical fibre soliton system is reduced by periodic dispersion compensation. Not only is the jitter reduced compared with the uncompensated fibre, but it is lower than that of a system with constant dispersion equal to the path average dispersion of the dispersion managed system.

Soliton transmission with periodic dispersion compensation: effects of radiation

We analyze the stabilization, by means of periodic dispersion compensation, of soliton transmissions operating beyond the average soliton regime. We determine optimal parameters of the dispersion compensating fibers by evaluating the fraction of generated radiation.

Reduction of Gordon-Haus timing jitter by periodicdispersion compensation in soliton transmission

A novel soliton transmission scheme to suppress the accumulation of the Gordon-Haus jitter using periodic dispersion compensation and inline optical filters has been proposed. With 90% dispersion compensation rate and optimum optical filters, a Q/sup 2/ of 19 dB and a large power window of 2 dB were confirmed for a 20 Gbit/s, 9000 km transmission system by using a 1000 km-long recirculating loop.