Dynamic Wavefront Detection of Shearing Interferometer with Photon Counting Method
(Li Mingquan, Huang Jiaxi, Tang Guomao)(Wu Lihua, Liang Chun,Ren Shaohen)(Institute of Optics & Electronics of the Chinese Academy of Sciences, Chengdu)
The real-time dynamic wavefront detection is one of the most importantunit technique of the adaptive optical system. This article reports the exper-iments of the low light level wavefront error detection using the shearinginterferometer with photon counting method. The principle of the wavefrontdetection is stated and the main error sources of the phase detection are discu-ssed. The experiments show that the wavefront information can be detectedwhile some tens or one hundred optoelectronic pulses are received within onedetection cycle.