Title :
An optical bit-rate flexible transmission system with 5-Tb/s-km capacity employing multiple in-line erbium-doped fiber amplifiers
Author :
Hagimoto, Kazuo ; Nishi, Shigendo ; Nakagawa, Kiyoshi
Author_Institution :
NTT Transmission Syst. Lab., Kanagawa, Japan
fDate :
9/1/1990 12:00:00 AM
Abstract :
An optical bit-rate flexible transmission system using erbium-doped fiber amplifiers (EDFAs) is proposed, and the system design is discussed. An optical bit-rate flexible system using multiple in-line erbium-doped fiber amplifiers has produced a regenerative repeater spacing of 505 km at 10 Gb/s and 523 km at 5 Gb/s for direct-detection systems. This system proves that an optical bit-rate flexible system with a transmission capacity of 5.05 Tb/s-km can be feasibly constructed. System capacity is clarified both theoretically and experimentally. The power penalties involved are discussed. The related optical and electrical circuits proved operational above 10 Gb/s. The 523 km at 5 Gb/s and 505 km at 10 Gb/s transmission experiments successfully demonstrated that EDFAs effectively enhance a system´s transmission capacity
Keywords :
digital communication systems; erbium; fibre lasers; optical communication equipment; optical links; 10 Gbit/s; 5 Gbit/s; 505 km; 523 km; Er doped fiber amplifiers; direct-detection systems; electrical circuits; optical bit-rate flexible transmission system; power penalties; regenerative repeater spacing; system design; transmission capacity; Bit rate; Erbium-doped fiber amplifier; High speed optical techniques; Optical noise; Optical receivers; Optical sensors; Optical transmitters; Repeaters; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
