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Recent progress on OTDM Terabit/s transmission and their future

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6 Author(s)
Hirooka, T. ; Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan ; Nakazawa, M. ; Yoshida, M. ; Kasai, K.
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Recent advances toward 1 Tbit/s/ch transmission over long distances were overviewed. 1) Ultrahigh-speed transmission at 640 Gsymbol/s per polarization (640 Gbit/s DPSK or 1.28-2.56 Tbit/s DQPSK) have been demonstrated. 2) Subpicosecond pulse transmission over long distances, however, suffers from serious transmission impairments caused by long-term PMD variation and higher-order PMD. 3) Signal processing such as time-domain OFT technique and bandwidth reduction by employing multi-level RZ-QAM are expected to overcome such limitations and realize Tbit/s transmission over 500-1000 km. 4) All-optical and OTDM technologies are expected to contribute not only to ultrahigh-speed data transmission but also to network flexibility and low power consumption.

Published in:

Optical Fiber Communication (OFC), collocated National Fiber Optic Engineers Conference, 2010 Conference on (OFC/NFOEC)

Date of Conference:

21-25 March 2010