Orthogonal-frequency-division multiplexing for dispersion compensation of long-haul optical systems

We show using simulations that a combination of Orthogonal Frequency Division Multiplexing ( OFDM) and Optical Single Sideband Modulation ( OSSB) can be used to adaptively compensate for chromatic dispersion in ultra- long- haul 10 Gbps Standard Single- Mode Fiber ( S- SMF) links. Additionally, for optical noise limited systems with Forward- Error Correction, OFDM can accept an Optical Signal to Noise Ratio ( OSNR) 0.5 dB lower than NRZ systems providing the optical carrier is suppressed.(c) 2006 Optical Society of America.