Title :
Recent progress on OTDM Terabit/s transmission and their future
Author :
Hirooka, Toshihiko ; Nakazawa, M. ; Yoshida, M. ; Kasai, K. ; Guan, P. ; Hirano, T.
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
Abstract :
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.
Keywords :
optical fibre dispersion; optical fibre networks; quadrature amplitude modulation; time division multiplexing; time-domain analysis; OTDM terabit transmission; all-optical technology; bandwidth reduction; distance 500 km to 1000 km; higher-order PMD; long-term PMD variation; low power consumption; multilevel RZ-QAM; signal processing; subpicosecond pulse transmission; time-domain OFT technique; ultrahigh-speed data transmission; Crosstalk; Design engineering; Optical design; Optical fiber networks; Optical filters; Optical noise; Optical receivers; Optical transmitters; Physical layer; Urban areas;
Conference_Titel :
Optical Fiber Communication (OFC), collocated National Fiber Optic Engineers Conference, 2010 Conference on (OFC/NFOEC)
Conference_Location :
San Diego, CA
Electronic_ISBN :
978-1-55752-884-1
