A FILTERING APPROACH FOR REDUCING TIMING JITTER DUE TO THE ACOUSTIC EFFECT

We introduce a signal processing approach to compensate for the timing jitter produced by the acoustic effect in soliton communications. The other main sources of timing jitter, the Gordon-Haus effect and the p olarization effect, are inherently stochastic. By contrast, the acoust ic effect is deterministic and becomes the dominant source of bit erro r rates in standard soliton systems when the bit rates are more than 1 0 Gb/s and the transmission distance is more than several thousand kil ometers. We exploit the deterministic nature of the acoustic effect to introduce a scheme that predicts the amount of timing jitter as a fun ction of the previous transmitted bits and uses the information to adj ust the sampling period of the received soliton pulses. We demonstrate successful application of the scheme by simulations and discuss imple mentation issues.