Compensation of Nonlinear Self-Phase Modulation with Phase Modulators
21 November 2002
We experimentally demonstrate the compensation of the nonlinear self-phase modulation of a 10 Gb/s RZ data stream with phase modulators. The electrical waveform that drives the phase modulators is synthesized from the recovered 10 GHz clock and its 20 GHz harmonic.
Our method is broadband, polarization insensitive and allows nearly arbitrary control of the magnitude and sign of the nonlinear phase compensation. Scaling to higher bit rate is straightforward.