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Title: Method for enhancing signals transmitted over optical fibers

Patent ·
OSTI ID:864700

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.

Research Organization:
EG & G Inc., Las Vegas, NV (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC08-76NV01183
Assignee:
Ogle; James W., Goleta, CA (United States)
Patent Number(s):
4,405,199
Application Number:
06/233,532
OSTI ID:
864700
Resource Relation:
Patent File Date: 1981 Feb 11
Country of Publication:
United States
Language:
English

References (2)

Optical demultiplexer using a silicon echelette grating journal February 1980
Multireflection optical multi/demultiplexer using interference filters journal January 1979