We demonstrate a high-gain bidirectional amplifier employing the newly prop
osed bidirectional dispersion compensation technique. We transmit wavelengt
h interleaved 10 Gb/s x 16-channel bidirectional signal over 200 km of sing
le-mode fiber (SMF) with negligible relative intensity noise (RIN)-induced
receiver sensitivity penalty, Furthermore, we show a simple fault detection
method in bidirectional transmission link by measuring the aggregate signa
l power at the monitoring port of the amplifier.