Dsc Communications Corporation

Tellabs Denmark A/s

Claus F Pedersen

S&oslash;ren M Nielsen

Jorn H Povlsen

In a method of amplitude equalization of a plurality of optical signals having mutually different wavelengths, the optical signals are launched into a first end of an optical fiber ( ). The optical signals are amplified, before being launched into the fiber ( ), to a level at which at least one of the signals exceeds a stimulated Brillouin scattering (SBS) threshold value (T ) characteristic of the fiber, so that part of the signal energy in the fiber is transferred to a Stokes signal propagating in the fiber ( ) in a direction opposite to said optical signals. An apparatus for amplitude equalization of a plurality of optical signals having mutually different wavelengths comprises an optical fiber ( ) having an input end ( ) where said optical signals may be supplied to the fiber, and an output end ( ) where said optical signals may be tapped from the fiber after equalization. The fiber ( ) has a characteristic stimulated Brillouin scattering (SBS) threshold value (T ) which corresponds to a preselected maximum amplitude value of the optical signals on the output end ( ) of the fiber.

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Frederiksberg, Denmark

Claus F Pedersen