Fig. 1. Detection system of large aperture lens based on fringe sensing

Fig. 2. Two-dimensional interference simulation fringes and their power spectra

Fig. 3. Using slope information obtained by fringe tracking and wavefront reconstruction at different sampling rates

Fig. 4. Accuracy of wavefront reconstruction using slope information obtained from fringe tracking

Fig. 5. Experimental verification system of light source transmission and beam coupling based on optical fiber interconnection

Fig. 6. Measurement results and power spectrum of 1 550 nm interference

Fig. 7. Double wavelength interference results of 1 550 nm+1 630 nm