We demonstrate the longest bidirectional and unrepeatered SOA-based transmission of 16×10Gbit/s DPSK-channels over single-mode fiber. DPSK constant-envelope prevents Cross-Gain Modulation in SOA-boosters. A new type of WDM-DSPK demodulator strongly enhances the signal tolerance to chromatic dispersion.

© 2006 Optical Society of America

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