Title :
640-Gb/s/Channel Single-Polarization DPSK Transmission Over 525 km With Ultrafast Time-Domain Optical Fourier Transformation
Author :
Hirano, Toshiyuki ; Guan, Pengyu ; Hirooka, Toshihiko ; Nakazawa, Masataka
Author_Institution :
Res. Inst. of Electr. Commun., Tohoku Univ., Sendai, Japan
fDate :
7/15/2010 12:00:00 AM
Abstract :
A single-channel 640-Gb/s differential phase-shift-keying transmission over 525 km was successfully demonstrated in a single polarization. A new ultrafast time-domain optical Fourier transformation (OFT) circuit was developed, in which the strong chirp required for the OFT of a subpicosecond optical pulse was realized with a phase modulator operated in a round-trip configuration. By applying this technique to a 640-Gb/s transmission, the tolerance to higher order polarization-mode dispersion was greatly improved and error-free transmission was achieved.
Keywords :
Fourier transform optics; differential phase shift keying; optical communication; optical modulation; DPSK transmission; bit rate 640 Gbit/s; channel single polarization; distance 525 km; error-free transmission; ultrafast time-domain optical Fourier transformation; Differential phase-shift keying (DPSK); high-speed optical pulse transmission; optical phase modulation; optical time-division multiplexing; ultrashort optical pulse;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2010.2049483
