A Novel Frequency Double Vector Millimeter Wave Signal Generation Scheme Based on a Single Polarization Modulator With Precoding

Abstract

In the work, we employed a single polarization modulator to achieve double frequency vector millimeter wave (mm-wave) signal generation scheme with optical carrier suppression (OCS), which just depend on a polarization modulator and two linear polarizers, and electronic circuits is needless to control the drift of modulator bias points and no optical filters is needed to filter out undesirable harmonics. In this scheme, we set up a simulation platform to generate 40 GHz QPSK modulated vector millimeter-wave signals and analyzed the performance. The results showed when the input power for the generated 10-Gbit/s vector millimeter-wave into PD is not less than −23 dBm, the bit-error ratio could be below 3.8×10−3, which demonstrated that the generated vector millimeter-wave signal enabled by our proposed scheme could work well.