Patent · US Expired

Method for enhancing signals transmitted over optical fibers

US4405199A · kind A · utility

21Cited by
9References
2Claims
0Family size

Inventors

Key dates

Filing dateFeb 11, 1981
Grant dateSep 20, 1983
Priority date—
Expiry dateFeb 11, 2001

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/2931
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A method for spectral equalization of high frequency spectrally broadband signals transmitted through an optical fiber. The broadband signal input is first dispersed by a grating. Narrow spectral components are collected into an array of equalizing fibers. The fibers serve as optical delay lines compensating for material dispersion of each spectral component during transmission. The relative lengths of the individual equalizing fibers are selected to compensate for such prior dispersion. The output of the equalizing fibers couple the spectrally equalized light onto a suitable detector for subsequent electronic processing of the enhanced broadband signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.