MATCHING INTRAPULSE SELF-FREQUENCY SHIFT TO SLIDING-FREQUENCY FILTERSFOR TRANSMISSION OF NARROW SOLITONS

Sliding-frequency filters are a standard means of suppressing the Gord on-Haus jitter in long-haul soliton transmission. For narrow solitons, the frequency sliding can be naturally provided by the Raman effect. The passbands of the sliding-frequency filters can then stay closer to the soliton's central frequency, thereby reducing filter losses, whic h in turn reduces the necessary compensatory gain and, consequently, t he timing jitter analyze the dynamics of solitons in a system with sli ding-frequency filters, Raman-induced self-frequency downshift, losses , periodic amplification, and third-order dispersion. An optimum mode of operation, based on an analytic approximation, is found and checked against numerical simulations. (C) 1998 Optical Society of America.