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Updated: May 20, 2026
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Highly dispersion-tolerant 160 Gbaud optical Nyquist pulse TDM transmission over 525 km
Toshihiko Hirooka1, Peng Ruan, Pengyu Guan
1Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Sendai-shi, Miyagiken, 980-8577 Japan. hirooka@riec.tohoku.ac.jp
Abstract:
We demonstrate an optical Nyquist pulse TDM (Nyquist OTDM) transmission at 160 Gbaud with a substantial increase in the dispersion tolerance compared with a conventional OTDM transmission. Optical Nyquist pulses can be bit-interleaved to ultrahigh symbol rate without suffering from intersymbol interference due to its zero-crossing property at every symbol interval. This allows the signal bandwidth to be greatly narrowed compared to typical pulse waveforms such as Gaussian or sech profile. By virtue of this property, a dispersion tolerance over ± 8 ps/nm was successfully realized in 160 Gbaud, 525 km transmission.
