Title :
3.2-5 Gb/s, 100 km error-free soliton transmission with erbium amplifiers and repeaters
Author :
Nakazawa, Masataka ; Suzuki, Uzunom ; Kimura, Yasuo
Author_Institution :
NTT Transmission Syst. Lab., Ibaraki, Japan
fDate :
3/1/1990 12:00:00 AM
Abstract :
For the transmissions, the transform-limited soliton pulse source is a gain-switched distributed-feedback laser diode with a narrowband spectral filter and erbium amplifiers. A LiNbO/sub 3/ light intensity modulator is used for pulse switching. The preemphasis technique for sending solitons over a long distance, in which an erbium optical repeater is installed every 25 km as a lumped amplifier, is used.<>
Keywords :
erbium; fibre optics; optical modulation; solid lasers; solitons; 100 km; 25 km; 3.2 to 5 Gbit/s; Er doped fiber amplifier; Er optical repeater; LiNbO/sub 3/ light intesnity modulator; gain-switched distributed-feedback laser diode; lumped amplifier; narrowband spectral filter; preemphasis technique; pulse switching; transform-limited soliton pulse source; Diode lasers; Erbium; Erbium-doped fiber amplifier; Optical amplifiers; Optical filters; Optical modulation; Optical pulses; Pulse amplifiers; Pulse modulation; Solitons;
Journal_Title :
Photonics Technology Letters, IEEE
