Error analysis for polarization controllers with high accuracy is necessary as they are very important in high-rate optical fiber communication systems
coherent optical fiber communication systems and fiber-optic sensor systems.In this paper
error analysis is performed on the wavelength correlativity of HQQ-type polarization controller and the changes of the azimuth angle and ellipticity angle of the output polarization state with the wavelength are observed by simulation.This result is very important for the error compensation of the controller.