Fig. 1. Schematic diagram of the space gravitational wave detector^[4]

Fig. 2. Schematic diagram of the optical structure of the gravitational wave telescope^[9]

Fig. 3. Schematic diagram of the algorithm flow of the gravitational wave telescope system model

Fig. 4. Schematic diagram of the telescope system structure

Fig. 5. Optical path data at the exit pupil of the transmitting telescope at the 0 degree field angle. (a) Calculation results of the optical field simulation model; (b) Calculation results of the simulation software ZEMAX; (c) The difference between (a) and (b)

Fig. 6. Intensity distribution map on the input surface

Fig. 7. Vectorial optical field distributions on the output surface of simulation calculation. (a) Intensity distribution map; (b) X polarization component amplitude distribution map; (c) X polarization component phase distribution map

Fig. 8. The amplitude distributions of the output field change with the waist distance (unit: V/m)

Fig. 9. The phase distributions of the output field change with the waist distance (unit: rad)

Fig. 10. The amplitude distributions of the output field change with the waist radius (unit: V/m)

Fig. 11. The phase distributions of the output field change with the waist radius (unit: rad)

Fig. 12. The changes of Z5 coefficient. (a) Z5 coefficient in the phase distribution changes with the waist distance; (b) Z5 coefficient in the phase distribution changes with the waist radius. (c) Z5 (defocus) term distribution form

Fig. 13. Phase distributions of the output X polarization field. (a) X polarization phase distribution under the ideal reflection; (b) X polarization phase distribution under the aluminum mirror reflection. (c) The difference in X polarization phase distribution between the aluminum mirror reflection case and the ideal reflection case

Fig. 14. Phase distributions of the output Y polarization field. (a) Y polarization phase distribution under the ideal reflection; (b) Y polarization phase distribution under the aluminum mirror reflection; (c) The difference in Y polarization phase distribution between the aluminum mirror reflection case and the ideal reflection case

Fig. 15. Comparison of Z2-Z15 coefficients of the X and Y polarizations phase difference distribution