Thermal-light-based ranging using second-order coherence

被引：17
|
作者：
Zhu, Jun [1 ]
Chen, Xiaoxiang [1 ]
Huang, Peng [1 ]
Zeng, Guihua [1 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Adv Opt Commun Syst & Networks, Key Lab Nav & Locat Based Serv, Dept Elect Engn, Shanghai 200240, Peoples R China
来源：
APPLIED OPTICS | 2012年 / 51卷 / 20期
基金：
美国国家科学基金会;
关键词：
ABSOLUTE DISTANCE; LONG-RANGE; LASER; INTERFEROMETRY; STATES;
D O I：
10.1364/AO.51.004885
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel thermal-light-based ranging scheme utilizing second-order coherence in the time domain is proposed and studied. Such a scheme allows ultrahigh accuracy to be achieved for absolute range measurement. Besides, the scheme has the advantages of high immunity to noise and no measuring dead zone. A proof-of-principle experiment has been done, and the result shows a +/-10 cm accuracy at a distance of 1 km, which is currently limited by our detectors. The accuracy can be greatly improved to the nanometer scale by using state-of-the-art detectors with an appropriate data processing algorithm. (C) 2012 Optical Society of America
引用
收藏
页码：4885 / 4890
页数：6
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