8-CHANNEL BIDIRECTIONAL WDM ADD DROP MULTIPLEXER/

The authors propose and demonstrate an eight-channel reconfigurable bi directional wavelength division multiplexed (WDM) add-drop multiplexer in which all channels can be added/dropped independently in either di rection. The performance of the bidirectional WDM add/drop multiplexer is experimentally studied for a data rate of 10Gbit/s per channel, pr oviding an overall capacity of 80Gbit/s. It is found that the performa nce of the add/drop multiplexer is not degraded by a backward propagat ing signal.