Long-Distance Optical Soliton Transmission with Lumped Amplifiers

Hirokazu Kubota, Masataka Nakazawa

Research output: Contribution to journalArticlepeer-review

57 Citations (Scopus)


A new soliton transmission method with lumped amplifiers is presented. We call this the preemphasis method. An N = 1 soliton with relatively high amplitudes (1.2 < A < 1.4), which is used as an input soliton, plays an important role in a lumped gain soliton transmission system. The initial soliton pulse width can be preserved after propagation over long distance despite the existence of fiber loss. It is shown that with the lumped gain, the soliton pulse can propagate over more than 9000 km when the repeater spacing is 31 km and fiber loss is 0.22 dB/km.

Original languageEnglish
Pages (from-to)692-700
Number of pages9
JournalIEEE Journal of Quantum Electronics
Issue number4
Publication statusPublished - 1990 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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