Dispersion based method of and apparatus for reducing unwanted m

Details Dispersion based method of and apparatus for reducing unwanted m Dispersion based method of and apparatus for reducing unwanted m

1997-10-08

2000-08-15

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359124, 359133, H04B 1000

Patent

active

061045144

ABSTRACT:
A method of and apparatus for reducing unwanted mixing products on multiplexed optical communications lines, based upon the dispersion characteristics of the particular optical transmission line, in which a plurality of optical carriers are transmitted at substantially equally spaced apart frequencies over an optical fiber. When an unwanted mixing product is detected, a set of carriers that can be involved in producing the unwanted mixing product is determined. A carrier of the set is selected based upon the dispersion characteristics of fiber, and the frequency of the selected is shifted to eliminate the unwanted mixing product.

REFERENCES:
patent: 5600467 (1997-02-01), Fee

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