激光技术, 2009, 33 (6): 571, 网络出版: 2010-03-11
反射式空间光调制器的相位调制特性测试
Measurement of phase modulation characteristics of reflective spatial light modulators
测量与计量 相位调制 双缝干涉 数值再现 光学再现 measurement and metrology phase modulation double-slit interference numerical reconstruction optical reconstruction
摘要
为了测试德国HOLOEYE公司LC-R2500型1024像素×768像素反射式空间光调制器的纯相位调制特性,采用了基于双光束干涉原理的测量方法,得到了输入图像灰度与相移量对应关系。将相位恢复算法编码后的纯相位图像作为空间光调制器的输入信息,进行了理论分析和实验验证。结果表明,光学再现像与数值模拟结果相吻合,验证了纯相位调制特性测量的准确性。
Abstract
In order to measure the phase modulation characteristics of type LC-R2500,made by Germany HOLOEY company,the relationship between image gray and phase shift was obtained based on double-slit interference.The image encoded by phase retrieval algorithm was input to spatial light modulator,theoretical analysis and experimental research were deployed.Experimental results show the optical reconstructed image is conformal to the numerical reconstructed image, which proves the veracity of measurement of phase modulation characteristics.
徐桂权, 冯少彤, 聂守平, 朱竹青. 反射式空间光调制器的相位调制特性测试[J]. 激光技术, 2009, 33(6): 571. XU Gui-quan, FENG Shao-tong, NIE Shou-ping, ZHU Zhu-qing. Measurement of phase modulation characteristics of reflective spatial light modulators[J]. Laser Technology, 2009, 33(6): 571.