Speckle reduction in line-scan laser projectors using binary phase codes.
Speckle reduction in line-scan laser projectors using binary phase codes.
复制标题
DOI：
10.1364/ol.35.000444
复制
发表时间：
2010-02
期刊：
影响因子：
3.6
通讯作者：
M. Akram;V. Kartashov;Z. Tong
中科院分区：
文献类型：
--
作者：
M. Akram;V. Kartashov;Z. Tong
最大长度为13的巴克二进制相位码先前已被用于线扫描激光投影仪中的散斑减少，并且散斑对比度因子降低到13%。在这封信中，长度大于13的类巴克二进制相位码用于中间图像平面。理论计算表明，采用较长的二元相位码比巴克码能更好地抑制相干斑，相干斑对比度可达6%。
A Barker binary phase code of maximum length 13 has previously been used for speckle reduction in line-scan laser projectors, and a speckle contrast factor decrease down to 13% has been achieved. In this Letter, Barker-like binary phase codes of lengths longer than 13 are used at an intermediate image plane. It is shown by theoretical calculation that a much better speckle reduction with a speckle contrast factor up to 6% can be achieved by using longer binary phase codes other than the Barker code.