title: Optical vector network analyzer with improved accuracy based on polarization modulation and polarization pulling.
abstract: We report a novel optical vector network analyzer (OVNA) with improved accuracy based on polarization modulation and stimulated Brillouin scattering (SBS) assisted polarization pulling. The beating between adjacent higher-order optical sidebands which are generated because of the nonlinearity of an electro-optic modulator (EOM) introduces considerable error to the OVNA. In our scheme, the measurement error is significantly reduced by removing the even-order optical sidebands using polarization discrimination. The proposed approach is theoretically analyzed and experimentally verified. The experimental results show that the accuracy of the OVNA is greatly improved compared to a conventional OVNA.
authors: Wei
authors: W
authors: Li
authors: Jian Guo
authors: JG
authors: Liu
authors: Ning Hua
authors: NH
authors: Zhu