Patent ID: 6392464
Filing Date: 2002-05-21
Classification: H03F,H04B

Abstract:
A circuit for producing an output signal with a predetermined nonlinear transfer characteristic over a relatively wide frequency range to compensate for an opposite nonlinear transfer characteristic of a circuit placed in cascade therewith, comprising:(1). a wide bandwidth circuit having; a. a first signal path having a relatively high gain characteristic and a relatively low or no nonlinear distortion characteristic and producing a first signal; b. a second signal path having a relatively low gain characteristic relative to the gain characteristic in the first signal path, and a relatively high nonlinear distortion characteristic, relative to the nonlinear distortion characteristic in the first signal path, and producing a second signal; c. means for combining the first and second signals with opposite polarities, to produce a predetermined nonlinear transfer characteristic over a relatively wide bandwidth; and (2). an optical modulator.