06282002 is referenced by 17 patents and cites 32 patents.

Optical systems of the present invention include a plurality of optical processing nodes in optical communication via at least one signal varying device. The signal varying devices includes an optical fiber suitable for facilitating Raman scattering/gain in a signal wavelength range and a pump energy source for providing pump energy in a plurality of pump wavelengths. The pump source provides sufficient pump energy in each pump wavelength to stimulate Raman scattering/gain in the optical fiber within the signal wavelength range. The pump wavelengths are selected such that the combined Raman gain resulting from the pump energy supplied by each pump wavelength produces a desired signal variation profile in the signal wavelength range. In addition, the pump energy supplied by at least one of the pump wavelengths can be varied to produce a controlled signal intensity variation profile over the signal wavelength range in the optical fiber.

Title
Optical signal varying devices
Application Number
9/544487
Publication Number
6282002 (B1)
Application Date
April 7, 2000
Publication Date
August 28, 2001
Inventor
Thomas D Stephens
Ellicott City
MD, US
Raymond Zanoni
Columbia
MD, US
Stephen G Grubb
Columbia
MD, US
Assignee
Corvis Corporation
MD, US
IPC
H04J 14/02
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