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http://hdl.handle.net/10397/82234
| Title: | Investigation on rotation response of spin-exchange relaxation-free atomic spin gyroscope | Authors: | Yang, YH Chen, DY Jin, W Quan, W Liu, F Fang, JC |
Issue Date: | 2019 | Source: | IEEE access, 10 Oct. 2019, v. 7, p. 148176-148182 | Abstract: | Spin-exchange relaxation-free atomic spin gyroscope (SERF gyro) has ultrahigh theoretical sensitivity and is regarded as one of the most potential atomic gyroscopes. To investigate its rotation response, a high linear atomic spin precession detection module was developed firstly by modifying the fiber reflective Sagnac interferometer for atomic spin precession detection and operating it in closed-loop mode. The SERF gyro based on K-Rb-Ne-21 comagnetometer was built and tested and appeared obvious nonlinear response feature. The nonlinear rotation response model was deduced by assuming the rotation-induced nuclei spin procession detecting as an in-situ magnetometer inside the SERF gyro and the fitting curves are in good agreement with the experimental results. The optimized pump power for maximum sensitivity and measurable dynamic range were analyzed theoretically and demonstrated experimentally. The investigation results show that the nonlinear rotation response is an intrinsic property of SERF gyro and its measurable dynamic range is limited due to the saturation characteristic of the sum of pumping and relaxation rate. This indicates that SERF gyro is propitious to a position gyroscope with high sensitivity. | Keywords: | Atomic spin gyroscope Spin-exchange relaxation-free Nonlinear rotation response model Atomic spin precession detection |
Publisher: | Institute of Electrical and Electronics Engineers | Journal: | IEEE access | EISSN: | 2169-3536 | DOI: | 10.1109/ACCESS.2019.2946379 | Rights: | This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see http://creativecommons.org/licenses/by/4.0/ The following publication Y. Yang, D. Chen, W. Jin, W. Quan, F. Liu and J. Fang, "Investigation on Rotation Response of Spin-Exchange Relaxation-Free Atomic Spin Gyroscope," in IEEE Access, vol. 7, pp. 148176-148182, 2019 is available at https://dx.doi.org/10.1109/ACCESS.2019.2946379 |
| Appears in Collections: | Journal/Magazine Article |
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| Yang_Spin-Exchange_Relaxation-Free_Atomic.pdf | 6.49 MB | Adobe PDF | View/Open |
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