高增益散粒噪声探测器的性能改进

周海军; 王文哲; 郑耀辉

doi:10.3788/OPE.20132111.2737

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高增益散粒噪声探测器的性能改进

现代应用光学 | 更新时间：2020-08-12

- 高增益散粒噪声探测器的性能改进
- Improvement of high-gain shot-noise detector
- 光学精密工程 2013年21卷第11期页码：2737-2743
- 作者机构：
  
  山西大学光电研究所量子光学与光量子器件国家重点实验室
- 作者简介：
- 基金信息：
  
  低频振动体系中环境能量捕获的关键问题研究();国家自然科学基金科学仪器研究专款();山西省自然科学基金()
- DOI：10.3788/OPE.20132111.2737
  中图分类号： TP212.14
- 收稿日期：2013-06-07，
  
  修回日期：2013-07-11，
  
  网络出版日期：2013-11-22，
  
  纸质出版日期：2013-11-15
- 稿件说明：
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周海军, 王文哲, 郑耀辉. 高增益散粒噪声探测器的性能改进[J]. 光学精密工程, 2013,21(11): 2737-2743

ZHOU Hai-Jun, WANG Wen-Zhe, ZHENG Yao-Hui. Improvement of high-gain shot-noise detector[J]. Editorial Office of Optics and Precision Engineering, 2013,21(11): 2737-2743
周海军, 王文哲, 郑耀辉. 高增益散粒噪声探测器的性能改进[J]. 光学精密工程, 2013,21(11): 2737-2743 DOI： 10.3788/OPE.20132111.2737.

ZHOU Hai-Jun, WANG Wen-Zhe, ZHENG Yao-Hui. Improvement of high-gain shot-noise detector[J]. Editorial Office of Optics and Precision Engineering, 2013,21(11): 2737-2743 DOI： 10.3788/OPE.20132111.2737.

摘要

针对量子光学实验对低噪声探测器的特殊需求，采用交流电流耦合跨阻抗前置放大电路和ETX500光电二极管设计了高增益散粒噪声探测器。与现有的探测器相比，该探测器在增益、带宽、交直流饱和特性3方面的性能均有明显提升。采用1 064 nm的单频激光器作光源，频谱分析仪作噪声测量工具，测量了探测器的输出特性。在分析频率2 MHz处，测量得到注入探测器的功率为850 W时，输出的噪声功率谱较电子学噪声谱高10 dB；注入探测器的功率大于1.62 mW时，探测器的带宽达到5 MHz。注入的光功率为0.85~36 mW时，探测器保持良好的交流与直流线性特性。设计的探测器的高增益与较高的交直流饱和特性，为量子光学实验提供了重要的探测工具。

Abstract

Based on the special demands of quantum optical experiments for low noise detectors

a high gain and shot noise detector was designed by combing an AC current coupled trans-impedance pre-amplify circuit and an ETX500 photodiode. Compared with existing detectors

the designed detector shows better characteristics in gain

bandwidth and AC & DC saturation. The output characteristics of the detector were measured by using a 1 064 nm single frequency laser as a source and a frequency spectrum analyzer as the measuring instrument. Measuring results show that the power noise spectrum of the detector is 10 dB higher than that of electronic noise spectrum when the injecting power for the detector is more than 850 W at 2 MHz. Furthermore

the bandwidth of the shot noise detector reaches 5 MH when the input infrared laser power is above 1.62 mW. The remarkable linearities for the DC and AC currents are available when the input infrared laser power is increased to 36 mW. Considering its higher gain and better DC & AC saturation characteristics

the detector is advantageous to quantum optic experiments.

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references

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