Title :
Prechirp technique as a linear dispersion compensation for multi-gigabit long-span IM-DD optical transmission systems
Author :
Henmi, Naoya ; Saito, Tomoki ; Yamaguchi, Masayuki ; Fujita, Sadao
Author_Institution :
NEC Corp., Kanagawa, Japan
Abstract :
A prechirp technique for linear dispersion compensation for intensity modulation direct detection (IM-DD) optical transmission systems has been investigated theoretically and experimentally. This technique is based on the predistortion technique in an optical transmitter. It is easily applied to the ordinary IM-DD optical transmitter which uses an external intensity modulator, because it requires only the addition of a small sinusoidal current modulation to a semiconductor laser diode. Allowable transmission fiber dispersion will be more than doubled with this technique. For example, allowable dispersion is expanded to over 11000 ps/nm dispersion at 2.5 Gb/s and 700 ps/nm at 10 Gb/s. The prechirp technique should be applicable to multi-gigabit transoceanic transmission systems in the future
Keywords :
optical dispersion; optical links; optical modulation; 10 Gbit/s; 2.5 Gbit/s; external intensity modulator; intensity modulation direct detection; linear dispersion compensation; multi-gigabit transoceanic transmission systems; optical transmission systems; optical transmitter; prechirp technique; predistortion technique; semiconductor laser diode; small sinusoidal current modulation; transmission fiber dispersion; High speed optical techniques; Intensity modulation; Optical fiber dispersion; Optical fiber losses; Optical modulation; Optical transmitters; Propagation losses; Space vector pulse width modulation; Transmission line theory; Wavelength division multiplexing;
Conference_Titel :
Communications, 1991. ICC '91, Conference Record. IEEE International Conference on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-0006-8
DOI :
10.1109/ICC.1991.162547
