首页|基于J型场效应管和电荷放大器的低噪声高增益大动态范围光电探测器

基于J型场效应管和电荷放大器的低噪声高增益大动态范围光电探测器

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
设计一种基于J型场效应管和电荷放大器的低噪声、高增益、大动态范围光电探测器,用于贝尔态探测中量子噪声的测量.特定光电二极管的结电容允许硅N沟道J型场效应管2sk152匹配电荷放大器A250的噪声要求.当相干激光功率为50.08μW时,在2.75 MHz分析频率处,光电探测器的电子噪声得到有效抑制,信噪比高达15 dB.通过电感和电容组合,光电探测器的交流和直流支路可以在25.06 μW～17.50 mW的动态范围内线性工作.该光电探测器可以完全满足量子光学实验中贝尔态探测对信噪比和动态范围的要求.
A low-noise,high-gain,and large-dynamic-range photodetector based on a JFET and a charge amplifier
We demonstrate a low-noise,high-gain,and large-dynamic-range photodetector(PD)based on a junction field-effect transistor(JFET)and a charge amplifier for the measurement of quantum noise in Bell-state detection(BSD).Particular photodiode junction capacitance allows the silicon N-channel JFET 2sk152 to be matched to the noise requirement for charge amplifier A250.The electronic noise of the PD is effectively suppressed and the signal-to-noise ratio(SNR)is up to 15 dB at the analysis frequency of 2.75 MHz for a coherent laser power of 50.08 μW.By combining of the inductor and capacitance,the alternating current(AC)and direct current(DC)branches of the PD can operate linearly in a dynamic range from 25.06 μW to 17.50 mW.The PD can completely meet the requirements of SNR and dynamic range for BSD in quantum optics experiments.

Quantum noiseBell-state detection(BSD)Photodetector(PD)Junction field-effect transistor(JFET)Charge amplifier

王锦荣、吴双娥、米成栋、邱炎儿、白心爱

展开 >

吕梁学院物理系,中国吕梁市,033001

华南理工大学广东省光纤激光材料与应用技术重点实验室,中国 广州市,510640

量子噪声 贝尔态探测 光电探测器 J型场效应管 电荷放大器

Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi(STIP)Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi(STIP)Key Research and Development Projects for Attarcting High-Level Scientific and Technological Talents to Lvliang CityOpen Fund of the Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques(South China University Key Research and Development Projects in the Field of Social Development of Lvliang CityHigher Education Reform and Innovation Project of Shanxi Province,ChinaHigher Education Reform and Innovation Project of Shanxi Province,ChinaHigher Education Reform and Innovation Project of Shanxi Province,ChinaInnovation and Entrepreneurship Training Program for College Students,China

2021L5622022L5732021RC-2-272021-062022SHFZ43J2021718J2021744J2021717202310812012

2024

10.1631/FITEE.2300340

信息与电子工程前沿(英文)
浙江大学

信息与电子工程前沿(英文)

CSTPCD
影响因子：0.371
ISSN：2095-9184
年,卷(期)：2024.25(2)
  • 7