Bi-directional add/drop amplifier module for high-capacity WDM networks

A bi-directional add/drop amplifier (BADA) module with a superior relative intensity noise (RIN) suppression capability has been realised based on a cost-effective dispersion compensation technique. A 14×10 Gbit/s bi-directional transmission over 200 km-long conventional SMF and channel-by-channel add/drop has been successfully demonstrated. The scalability of the BADA module is analysed.