Optical Solitons for High-Bit-Rate All-Optical Communication Systems
08 June 1988
Optical solitons in fibers which were theoretically predicted by Hasegawa and Tappert[1] and experimentally verified by Mollenauer et al[2] have been successfully transmitted without distortion over a distance of more than four thousand kilometers in the recent experiment of Mollenauer and Smith[3]. The scheme utilizes the Raman amplification in the fiber by a periodically injected pump light which was originally proposed by Hasegawa[4]. The distance of transmission achieved by the soliton is two orders of magnitude larger than that of a comparable linear pulse and demonstrates the significance of solitons as the future high speed signal carrier.