Method of optical signal transmission with reduced degradation by non-linear effects

Patent 6323993 Issued on November 27, 2001. Estimated Expiration Date:

February 19, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Lightwave transmission system employing raman and rare-earth doped fiber amplification Patent #: 6038356
Issued on: 03/14/2000
Inventor: Kerfoot, III, et al.

Inventors

Application

No. 253665 filed on 02/19/1999

US Classes:

359/337, Correction of deleterious effects372/6OPTICAL FIBER LASER

Examiners

Primary: Tarcza, Thomas H.
Assistant: Hughes, Deandra M.

Attorney, Agent or Firm

Finston; Martin I.

International Classes

H01S 003/10
G02F 001/00

Abstract

In an optical communication system, the signal power level injected into each of one or more optical fiber spans is reduced so as to suppress undesired non-linear effects. This reduction in injected signal level is made possible by remotely pumped amplification in the spans that are affected.

Other References

Forghieri, et al., Optical Fiber Telecommunications vol. IIIA, 1997, pp. 196-265.
Jinno et al., "WDM Transmission Technologies for Dispersion-Shifted Fibers", Aug. 1998, IEICE Trans. Electron, vol.E81-C, No. 8, pp. 1264-1275.
J.R. Simpson, et al., "A Distributed Erbium Doped Fiber Amplifier", Proc. OFC, pp. PD19-1 to PD19-4, (1990)
E. Desurvire, Erbium-Doped Fiber Amplifiers, Section 2.6, pp. 121-136
U.S. Patent application Ser. No. 09/233,318, filed on Jan. 19, 1999
U.S. Patent application Ser. No. 08/659,607, filed on Jun. 6, 1996
U.S. Patent application Ser. No. 09/153,605, filed on Sep. 15, 199