Patent ID: 8224188
Filing Date: 2012-07-17
Classification: H04B

Abstract:
1. A method for producing an output RF signal free from second-order harmonic distortion in an analog optical fiber link, comprising: receiving, at a dual-output Mach-Zehnder modulator, a first analog optical signal having a first wavelength λ applying, at the Mach-Zehnder modulator, an input RF signal and a bias voltage to the first and second analog optical signals, wherein λ receiving, at a multiplexer operatively connected to the Mach-Zehnder modulator, the output from the first and second output arms of the Mach-Zehnder modulator; filtering, at the multiplexer, the output from the first and second output arms and outputting, from the multiplexer, a multiplexed signal consisting of biased λ receiving biased λ differencing the photocurrents I wherein the even-order harmonics are cancelled in the output RF signal.