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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 31, Iss. 30 — Oct. 20, 1992
  • pp: 6459–6462

Measurements of magnetic fields by a ring laser

J. Zhang, T. Feng, S. Zhang, and G. Jin  »View Author Affiliations


Applied Optics, Vol. 31, Issue 30, pp. 6459-6462 (1992)
http://dx.doi.org/10.1364/AO.31.006459


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Abstract

The principle of measuring magnetic fields with a ring laser system is discussed. The main source of error, the Zeeman effect, is studied, and a corresponding technique to reduce it is described. An experimental setup is developed with a Faraday cell of a large product of the Verdet constant and the length. The experimental device obtains a sensitivity of 0.5 nT and a stability of 2 nT.

© 1992 Optical Society of America

History
Original Manuscript: December 19, 1988
Published: October 20, 1992

Citation
J. Zhang, T. Feng, S. Zhang, and G. Jin, "Measurements of magnetic fields by a ring laser," Appl. Opt. 31, 6459-6462 (1992)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-31-30-6459


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References

  1. S. Zhang, T. Feng, Q. Tian, “Study of ring laser weak magnetic sensor,” Acta Geophys. Sin. (China) 29, 363–368 (1986).
  2. J. Zhang, “Measurements of weak magnetic fields using a ring laser: theory and system development,” Ph.D. dissertation (Tsinghua University, Beijing, 1988).
  3. W. E. Lamb, “Theory of an optical maser,” Phys. Rev.134, A1429–A1450 (1964). [CrossRef]
  4. L. N. Mengozzi, W. E. Lamb, “Theory of a ring laser,” Phys. Rev.8, A2103–A2125 (1973). [CrossRef]
  5. J. Zhang, “A technique for the alignment of a ring laser cavity,” Opt. Laser Technol. 20, 321–322 (1988). [CrossRef]
  6. J. Zhang, “Signal detection and frequency stabilization of a ring laser system for measuring magnetic fields,” Chin. Phys. Lasers 17, 73–78 (1990).

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