05917635 is referenced by 4 patents and cites 1 patents.

An optical repeater is described which integrates an erbium doped optical fiber amplifier (EDFA) with a dispersion equalizer (DE) based on fiber gratings. The dispersion equalizer is based on parallel connection of two fiber gratings for single carrier wavelength operation, and on parallel connection of a cascade of two fibre grating branches, each carrying a plurality grating elements chirped for different wavelengths, for WDM operation at a plurality of wavelengths.

The use of two gratings sections for each wavelength improves the optical bandwidth of the equalizer compared with single grating designs, doubling the effective bandwidth. Further, the grating DE is disposed between two fiber amplifier sections which share a single pump laser. Thus, this arrangement provides dispersion compensation and loss compensation in an optical repeater of lower cost, and smaller size, compared to a system of similar performance configured using discrete components.

Title
Optical repeaters for single-and multi-wavelength operation with dispersion equalization
Application Number
8/655399
Publication Number
5917635
Application Date
May 30, 1996
Publication Date
June 29, 1999
Inventor
Douglas S Burbidge
Kanata
CA
Milorad Cvijetic
Nepean
CA
Agent
Angela C de Wilton
Assignee
Northern Telecom
CA
IPC
H04B 10/17
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