A phase retrieval algorithm which only needs to measure the intensity distribution at two positions to be effective is used to reconstruct the laser wave-front. Results are obtained from the phase retrieval algorithm in the visible band and the effects of the measurement error on the phase retrieval process are simulated. The algorithm is not sensitive to absolute amplitude measurement error, but is sensitive to the relative distribution of light intensity.
© 2011 Chinese Optics Letters
Wei Huang, Dean Liu, Xuejie Zhang, Yan Zhang, and Jianqiang Zhu, "Analysis of a digital phase retrieval method for wave-front reconstruction," Chin. Opt. Lett. 9, 080101-080101 (2011)