Length of Polarization-Correlation Based on Speckle Pattern for Optical Coherent Detection

被引：0
作者：
Zhang, Longkun [1 ,2 ]
Sun, Jianfeng [3 ]
Xu, Qian [3 ]
Chen, Weibiao [1 ,2 ]
机构：
[1] Univ Sci & Technol China, Dept Opt & Opt Engn, Hefei 230026, Peoples R China
[2] Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Space Laser Commun & Detect Technol, Shanghai 201800, Peoples R China
[3] Shanghai Key Lab Satellite Network, Shanghai 200120, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2024年 / 16卷 / 02期
关键词：
Speckle; Scattering; Optical variables measurement; Optical scattering; Coherence; Adaptive optics; Media; Length of polarization-correlation; speckle depolarization; optical coherent detection; coherent efficiency; LIGHT; DEPOLARIZATION; ENPOLARIZATION; PARAMETERS; SCATTERING; SURFACES;
D O I：
10.1109/JPHOT.2024.3366398
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A length of polarization-correlation (LPC) based on speckle pattern of the non-uniform spatial polarization distribution is proposed and measured by using the classical measurement method of the Stokes polarization parameters for optical coherent detection. The LPC, which depends on the material of the scattering medium, is emphasized on the speckle scale. A gradually expanding window centered at the brightest spot of the speckle pattern, is designed to calculate the degree of polarization (DOP) of different speckle sizes. Moreover, the magnitude of LPC is equal to the speckle size that reaches a particular threshold on the DOP curve. It is experimentally demonstrated that the LPC is exploited to not only investigate the nature of the polarization changes between different speckle sizes, but also be combined with coherent efficiency. This study can provide new insights of speckle depolarization in optical coherent detection and open new opportunities for improving coherent efficiency.
引用
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页码：1 / 7
页数：7
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