Abstract

Polarization bit interleaving of return-to-zero (RZ) pulses doubles spectral efficiency with reduced pulse-to-pulse interaction. We report transmission of sixteen 25-Gbit/s polarization-bit-interleaved RZ differential binary phase-shift-keyed (DBPSK) dense-WDM (DWDM) signals with 25-GHz channel spacing over 400 km of SMF-28 fiber link. The EDFA-based link has an amplifier spacing of 100 km with an average loss of 25 dB between erbium-doped fiber amplifiers (EDFAs) and a maximum span loss of up to 30 dB. A transmission penalty of 1.5 dB after 400 km was obtained. Compared with one polarization, a net penalty of 0.6 dB after 400 km was obtained. To the best of our knowledge, this is the first transmission test of multichannel polarization-bit-interleaved RZ-DBPSK signals operating at 25 Gbit/s with a spectral efficiency of 0.8 bit/s/Hz.

© 2003 Optical Society of America

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription