基于PPLN晶体的高通量相关光子制备实验研究

大气与环境光学学报 ›› 2017, Vol. 12 ›› Issue (4): 305-312.

基于PPLN晶体的高通量相关光子制备实验研究

盛文阳1，2, 李健军1, 夏茂鹏1，郑小兵1*, 闫静1

（1中国科学院通用光学定标与表征技术重点实验室，安徽合肥 230031 ;
2 安徽大学物理与材料科学学院，安徽合肥 230031）

收稿日期:2016-04-26 修回日期:2017-03-27 出版日期:2017-07-28 发布日期:2017-07-19
通讯作者: 郑小兵（1969-），男，安徽合肥人，博士，研究员，博士生导师，主要从事光学精密测量的先进方法与仪器、卫星光学传感器的高精度定标、光学遥感和海洋光学、辐射定标等方面的研究。 E-mail:xbzheng@aiofm.ac.cn
作者简介:盛文阳（1991-），女，安徽亳州人，硕士研究生，主要从事光学遥感器高精度辐射定标等方面的研究等方面工作。
基金资助:
国家863项目（2015AA123702），国家自然科学基金项目（11204318、61275173）资助

Experimental Preparation of Ultra-Bright Correlated-Photons Based on Periodically-Poled Lithium Niobate

SHENG Wenyang1，2, LI Jianjun1, XIA Maopeng1, ZHENG Xiaobing1*, YAN Jing1

(1. Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
2. School of Physics & Material Science, Anhui University, Hefei 230031, China)

Received:2016-04-26 Revised:2017-03-27 Published:2017-07-28 Online:2017-07-19
Supported by:
Supported by Nation High Technology Research and Development Program of China(2015AA123702),the National Natural Science Foundation of China(11204318、61275173)

摘要/Abstract

摘要：

利用基于参量下转换产生的相关光子可以实现“无溯源”的绝对定标。该定标方法推广应用于模拟探测器定标的过程中，其中获取高通量的相关光子是一个重要的难点。介绍了一种基于自发参量下转换制备高通量相关光子的方法原理和实验装置。采用532 nm连续激光泵浦周期性极化铌酸锂（PPLN）晶体，在满足准相位匹配（QPM）方式下产生高通量的纠缠光源，改变泵浦光源的功率，实验结果显示具有较好的线性。叙述了准相位匹配技术原理，搭建了制备高通量相关光子的实验装置，并优化了泵浦激光光源和各光学元器件的设计参数。该研究结果为后期进行高精度定标和模拟探测奠定了基础。

关键词: 辐射定标, 自发参量下转换, 高通量, 相关光子, 准相位匹配, 周期性极化铌酸锂晶体

Abstract:

Absolute calibration can be realized by means of correlation photon which is generated by the spontaneous parametric down-conversion. The main difficulty of using correlation photons method to realize the absolute calibration of analog detectors is to acquire ultra-bright entangled photons. The calibration principle and experimental device of acquiring ultra-bright correlation photons were described based on spontaneous parametric down–conversion. A laser (532 nm) was used to pump the nonlinear crystal periodically-poled lithium niobate (PPLN), and ultra-bright entanglement source satisfing the quasi-phase matching (QPM) manner was produced. The measurement result shows good linearity when pump laser power is different. The principle of phase matching technology was described and the preparation of the experiment device of ultra-bright correlation photons was set up, the pump laser light source and the design parameters of the optical components were improved. This novel method shows great significance to high-accuracy calibration for the wavelength of correlation photons and the future researches on analog detector.

Key words: radiance calibration, spontaneous parametric down–conversion, ultra-bright, Entangled biphotons, quasi-phase-matching; periodically-poled lithium niobate crystal

中图分类号:

O432.2

盛文阳李健军夏茂鹏郑小兵闫静. 基于PPLN晶体的高通量相关光子制备实验研究[J]. 大气与环境光学学报, 2017, 12(4): 305-312.

SHENG Wen-Yang, LI Jian-Jun, XIA Mao-Peng, ZHENG Xiao-Bing, YAN Jing. Experimental Preparation of Ultra-Bright Correlated-Photons Based on Periodically-Poled Lithium Niobate[J]. Journal of Atmospheric and Environmental Optics, 2017, 12(4): 305-312.

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