Research on high-bandwidth ROF optical transceiver module based on adaptive push-pull structure

Abstract

Aiming at the nonlinear distortion problem of ROF, the common parameters for evaluating ROF linearity and the nonlinear distortion components commonly used in ROF links are analyzed by theoretical derivation and ROF link characteristics. A push-pull structure combined with adaptive compensation algorithm is proposed. The method was verified by simulation. For the tested two-tone signal, the simulation results show that the method can eliminate the IMD2, HD2, IMD3 and XMD distortion components at the same time.