PMID- 37655992
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230901
IS  - 1089-7623 (Electronic)
IS  - 0034-6748 (Linking)
VI  - 94
IP  - 9
DP  - 2023 Sep 1
TI  - Characterizing current noise of commercial constant-current sources by using an 
      optically pumped rubidium atomic magnetometer.
LID - 095001 [pii]
LID - 10.1063/5.0159751 [doi]
AB  - This paper introduces a method for characterizing the current noise of commercial 
      constant-current sources (CCSs) using a free-induction-decay (FID) type optically 
      pumped rubidium atomic magnetometer driven by a radio frequency magnetic field. 
      We convert the sensitivity of the atomic magnetometer into the current noise of 
      CCS by calibrating the coil constant. At the same time, the current noise 
      characteristics of six typical commercial low-noise CCSs are compared. The 
      current noise level of the Keysight model B2961A is the lowest among the six 
      tested CCSs, which is 36.233 +/- 0.022 nA/Hz1/2 at 1-25 Hz and 133.905 +/- 0.080 
      nA/Hz1/2 at 1-100 Hz. The sensitivity of the atomic magnetometer is dependent on 
      the current noise level of the CCS. The CCS with low noise is of great 
      significance for high-sensitivity atomic magnetometers. This research provides an 
      important reference for promoting the development of high precision CCS, 
      metrology, and basic physics research.
CI  - (c) 2023 Author(s). Published under an exclusive license by AIP Publishing.
FAU - Zhao, Ni
AU  - Zhao N
AUID- ORCID: 0009-0009-4592-2993
AD  - State Key Laboratory of Quantum Optics and Quantum Optics Devices and Institute 
      of Opto-Electronics, Shanxi University, Taiyuan 030006, Shanxi Province, China.
FAU - Zhang, Lulu
AU  - Zhang L
AUID- ORCID: 0009-0007-7542-5694
AD  - State Key Laboratory of Quantum Optics and Quantum Optics Devices and Institute 
      of Opto-Electronics, Shanxi University, Taiyuan 030006, Shanxi Province, China.
FAU - Yang, Yongbiao
AU  - Yang Y
AD  - State Key Laboratory of Quantum Optics and Quantum Optics Devices and Institute 
      of Opto-Electronics, Shanxi University, Taiyuan 030006, Shanxi Province, China.
FAU - He, Jun
AU  - He J
AUID- ORCID: 0000-0003-2972-5913
AD  - State Key Laboratory of Quantum Optics and Quantum Optics Devices and Institute 
      of Opto-Electronics, Shanxi University, Taiyuan 030006, Shanxi Province, China.
AD  - Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 
      030006, Shanxi Province, China.
FAU - Wang, Yanhua
AU  - Wang Y
AUID- ORCID: 0000-0003-0844-7141
AD  - State Key Laboratory of Quantum Optics and Quantum Optics Devices and Institute 
      of Opto-Electronics, Shanxi University, Taiyuan 030006, Shanxi Province, China.
AD  - College of Physics and Electronic Engineering, Shanxi University, Taiyuan 030006, 
      Shanxi Province, China.
FAU - Li, Tingyu
AU  - Li T
AD  - College of Electronic Information and Optical Engineering, Taiyuan University of 
      Technology, Taiyuan 030024, Shanxi Province, China.
FAU - Wang, Junmin
AU  - Wang J
AUID- ORCID: 0000-0001-8055-000X
AD  - State Key Laboratory of Quantum Optics and Quantum Optics Devices and Institute 
      of Opto-Electronics, Shanxi University, Taiyuan 030006, Shanxi Province, China.
AD  - Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 
      030006, Shanxi Province, China.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Rev Sci Instrum
JT  - The Review of scientific instruments
JID - 0405571
SB  - IM
EDAT- 2023/09/01 12:42
MHDA- 2023/09/01 12:43
CRDT- 2023/09/01 09:43
PHST- 2023/05/26 00:00 [received]
PHST- 2023/08/10 00:00 [accepted]
PHST- 2023/09/01 12:43 [medline]
PHST- 2023/09/01 12:42 [pubmed]
PHST- 2023/09/01 09:43 [entrez]
AID - 2908734 [pii]
AID - 10.1063/5.0159751 [doi]
PST - ppublish
SO  - Rev Sci Instrum. 2023 Sep 1;94(9):095001. doi: 10.1063/5.0159751.