Experimental measuring of the coherence length of a single photon generated via a degenerated optical parametric oscillator far below threshold

被引：8
|
作者：
Wang, Fu-Yuan [1 ]
Shi, Bao-Sen [1 ]
Zhai, Chang [1 ]
Guo, Guang-Can [1 ]
机构：
[1] Univ Sci & Technol China, Key Lab Quantum Informat, Hefei 230026, Peoples R China
来源：
JOURNAL OF MODERN OPTICS | 2010年 / 57卷 / 04期
关键词：
SPDC; coherence length; interference; PAIRS; CAVITY; LIGHT; TIME;
D O I：
10.1080/09500341003624727
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this work, we report on experimental measuring of the coherence length of a single photon, which is generated via a degenerated optical parametric oscillator (OPO) operated far below threshold. Although the bandwidth of the OPO cavity is about 7.8 MHz, the measured coherence length of the single photon is only about 90 mm via a Michelson interferometer, due to the multimode property of the photon generated in the experiment. Therefore, further reducing the bandwidth of the photon is necessary for its application in some fields, such as transferring the information between the photon and an atomic system.
引用
收藏
页码：330 / 333
页数：4
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