Weak light signal detection method for atomic gyroscope based on automatic zeroing of the bias

Wang Jing; Zhou Binquan; Wu Wenfeng; Chen Linlin; Zhao Xinghua; Liang Xiaoyang; Liu Gang

doi:10.3788/IRLA201847.0817004

Nuclear Magnetic Resonance Atomic Gyroscope has attracted an extensive attention due to its high precision, compact size and less cost at home and abroad. Among numerous techniques for obtaining the detection target, the balanced polarimetry technique is a more general method which monitors the rotation of the polarization plane of the probe beam. Due to miniaturization installation, the size effect is obvious. So there is an inevitable azimuth deviation between optical elements that leads to a bias of the weak optical signal, which extremely restricts the extraction and amplification. For the purpose of improving the detection performance, the differential detection principle of the laser polarization was analysed and a circuit method was proposed which could automatic eliminate the photodiode current bias based on the proportional-integral (P-I) feedback loop. A low-noise and high-gain preamplifier for silicon photodiode was presented. Finally, combined with the NMRG prototype system, the simulation analyses and experimental results were given, which verified the validity of this method.

Weak light signal detection method for atomic gyroscope based on automatic zeroing of the bias

1. National Key Laboratory of Inertial Technology,Beijing 100191,China;

2. School of Instrument Science and Opto-electronics Engineering,Beihang University,Beijing 100191,China

Received Date: 2018-03-05

Rev Recd Date: 2018-04-03

Publish Date: 2018-08-25

Key words:

Abstract: Nuclear Magnetic Resonance Atomic Gyroscope has attracted an extensive attention due to its high precision, compact size and less cost at home and abroad. Among numerous techniques for obtaining the detection target, the balanced polarimetry technique is a more general method which monitors the rotation of the polarization plane of the probe beam. Due to miniaturization installation, the size effect is obvious. So there is an inevitable azimuth deviation between optical elements that leads to a bias of the weak optical signal, which extremely restricts the extraction and amplification. For the purpose of improving the detection performance, the differential detection principle of the laser polarization was analysed and a circuit method was proposed which could automatic eliminate the photodiode current bias based on the proportional-integral (P-I) feedback loop. A low-noise and high-gain preamplifier for silicon photodiode was presented. Finally, combined with the NMRG prototype system, the simulation analyses and experimental results were given, which verified the validity of this method.

HTML

Reference (14)

[1]	Meyer D, Larsen M. Nuclear magnetic resonance gyro for inertial navigation[J]. Gyroscopy and Navigation, 2014, 5(2):75-82.
[2]	Wang J P, Tian W F, Jin Z H. Study on integrated micro inertial navigation system/GPS for land vehicles[J]. Intelligent Transportation Systems, 2003, 2:1650-1653.
[3]	Schwindt P D, Lindseth B J, Shah V, et al. Chip-scale atomic magnetometer[J]. Mine Warfare Ship Self-Defence, 2004, 85(26):6409-6411.
[4]	Wang Wei. Development of new inertial technology and its application in aerospace field[J]. Infrared and Laser Engineering, 2016, 45(3):0301003. (in Chinese)
[5]	Walker T G, Larsen M S. Spin-exchange-pumped NMR gyros[J]. Advances in Atomic Molecular Optical Physics, 2016, 65:373-401.
[6]	Donley E A. Nuclear magnetic resonance gyroscopes[J]. Sensors IEEE, 2010, 143(2):17-22.
[7]	Wang Wai, Wu Wei, Feng Qi, et al. Design of a fully differential CMOS transimpedance preamplifier for 10 Gb/s optical receiver[J]. Infrared and Laser Engineering, 2015, 44(5):1587-1592. (in Chinese)
[8]	Happer W, Miron E, Schaefer S, et al. Polarization of the nuclear spins of noble-gas atoms by spin exchange with optically pumped alkali-metal atoms[J]. Physical Review A, 1984, 29(6):3092-3110.
[9]	Savukov I M, Romalis M V. NMR detection with an atomic magnetometer[J]. Physical Review Letters, 2004, 94(12):123001.
[10]	Chen L, Lei G, Wu W, et al. The optimal frequency and power of a probe beam for atomic sensor[C]//Applied Optics and Photonics China, 2015, 9671:96711P.
[11]	Seltzer S J. Developments in alkali-metal atomic magnetometry[D]. Princeton:Princeton University, 2008.
[12]	Wan S. Study on experiment of error analysis and suppression methods for SERF atomic spin gyroscope[D]. Beijing:Beihang University, 2014. (in Chinese)
[13]	Peterson J D. Silicon photodiode:US, US2994054[P]. 1961-07-25.
[14]	Pullia A, Zocca F. Low-noise current preamplifier for photodiodes with DC-current rejector and precise intensity meter suited for optical light spectroscopy[C]//Nuclear Science Symposium Conference Record, 2010:1343-1345.

Weak light signal detection method for atomic gyroscope based on automatic zeroing of the bias

doi: 10.3788/IRLA201847.0817004

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Article Metrics

Related

Proportional views