Annular flat-top laser beam generated by an adaptive weight FFT-based iterative algorithm

摘要：

　　The generation of a variable diameter annular flat-top laser beam in the far field based on an adaptive weight FFT-based iterative algorithm (AWFFT-IA) and a phase only liquid crystal spatial light modulators (poLCSLM) is demonstrated.The iterative algorithm is used to design the needed phase distribution written on the poLCSLM for the target diameter annular flat-top laser beam shaping.The experimental results show that the method proposed can concentrates about 71% of the incident laser energy into the desired region and the root mean square error (RMSE) of the tailored flat-top intensity profile is more or less 12%.

关键词： Diffractive optics phase retrieval algorithm laser beam shaping spatial light modulator

作者: Dong Wang Liu Xiang Hao Wang Jian Zhang Li-ying Wu

作者单位: Institute of Ultra-Precision Optoelectronic Instrument Engineering, Harbin Institute of Technology,H Shanghai Institute of Spaceflight Control Technology Key Laboratory of Space Intelligent Control,Sha National Aerospace Laboratory of Intelligent Control,Beijing Aerospace Automatic Control Institute,

会议类型: 国际会议

会议名称: 2012第八届精密工程测量和仪器仪表国际研讨会(ISPEMI2012)

会议地点: 成都

会议语种:英文

页码: 1-6

在线出版日期: 2012-08-08（万方平台首次上网日期，不代表论文的发表时间）