Title :
5 Gb/s optical soliton transmission experiment using Raman amplification for fiber-loss compensation
Author :
Iwatsuki, Katsumi ; Nishi, Shigendo ; Saruwatari, Masatoshi ; Nakagawa, Kiyoshi
Author_Institution :
NTT Transmission Syst. Lab., Kanagawa, Japan
fDate :
7/1/1990 12:00:00 AM
Abstract :
Optical soliton transmission of 5 Gb/s over a 23-km amplification spacing using a gain-switched 1.55- mu m distributed feedback laser diode and Ti:LiNbO/sub 3/ intensity modulator is discussed. An Er/sup +/-doped fiber amplifier, pumped by 1.45- and 1.48- mu m laser diodes, is employed for achieving intense optical pulses. Transmission fiber-loss is completely compensated for by Raman amplification using by 1.45- and 1.48- mu m laser-diode pumping. A bit error rate (BER) of 2*10/sup -10/ has been obtained.<>
Keywords :
Raman lasers; distributed feedback lasers; optical communication equipment; optical fibres; optical losses; optical pumping; semiconductor junction lasers; solitons; 1.45 micron; 1.48 micron; 1.55 micron; 23 km; 5 Gbit/s; Er/sup +/-doped fiber amplifier; LiNbO/sub 3/:Ti; Raman amplification; amplification spacing; bit error rate; distributed feedback laser diode; fiber-loss compensation; gain-switched; intense optical pulses; intensity modulator; laser diodes; laser pumping; optical soliton transmission experiment; Bit error rate; Diode lasers; Distributed feedback devices; Erbium; Intensity modulation; Laser excitation; Optical fiber amplifiers; Optical solitons; Pulse amplifiers; Semiconductor optical amplifiers;
Journal_Title :
Photonics Technology Letters, IEEE
