
Draw a diagram of an optical experimental design. The following is an introduction: To reproduce the dominant dynamic instrumental polarization effect caused by the relative rotation of the mirror group in the horizontal telescope, a simplified desktop simulation experimental system is built in this chapter. The experimental optical path consists of three parts in the direction of beam propagation: a Polarization State Generator (PSG), a relatively rotating mirror group, and a Polarization State Analyzer (PSA). The PSG unit is composed of a light source and a polarizer, and is used to generate four standard incident polarization states: horizontal linear polarization (0L), +45° linear polarization (45L), left-handed circular polarization (LCP), and right-handed circular polarization (RCP). The relatively rotating mirror group in the middle of the optical path includes two reflectors (M1 and M2) installed on optical lifting stages. In the experiment, the relative rotation between the mirror groups is simulated by controlling the rotation of M2, which is the physical origin of the dynamic IP generated by the horizontal telescope. Finally, the outgoing beam enters the PSA unit, is modulated by the analyzer, and the light intensity is detected by the camera, and then the Stokes vector of the system is calculated.
1. A high-temperature superconducting magnet magnetic confin...