Abstract
By means of the higher-order dispersion compensation technique using a phase modulator, a 70-km transmission experiment with 1.28 Tbit/s OTDM (Optical Time Domain Multiplexing) signals has been successfully conducted for the first time. The details are reported in this paper. The 1.28 Tbit/s signal is obtained by 64-fold multiplexing of 10 Gbit/s signals with additional polarization multiplexing. For the signal pulse with a pulse width of 380 fs prior to transmission, a linear chirp is imparted and then a cosine phase modulation with an appropriate amplitude and the timing is set in such a way that the imparted chirp is opposite to the chirps caused by the third- and fourth-order dispersion in the transmission path. In this way, the waveform distortion of the signal due to the third- and fourth-order dispersion can be suppressed simultaneously. The pulse widening of the signal after transmission over 70 km is only 20 fs. Hence, an error rate of less than 1 × 10-9 can be realized over the entire channel (10 Gbit/s-128 channels after multiplexing separation.
Original language | English |
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Pages (from-to) | 68-79 |
Number of pages | 12 |
Journal | Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi) |
Volume | 86 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2003 |
Keywords
- Femto-second pulse
- Higher-order dispersion compensation
- Phase modulator
- Terabit OTDM transmission
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering