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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 31 — Nov. 1, 2001
  • pp: 5738–5741

Optical electric-power-sensing system using Faraday and Pockels cells

Yongqian Li, Changsheng Li, and Toshihiko Yoshino  »View Author Affiliations


Applied Optics, Vol. 40, Issue 31, pp. 5738-5741 (2001)
http://dx.doi.org/10.1364/AO.40.005738


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Abstract

We present what to our knowledge is a novel optical electric-power-sensing system that uses a cascade of a Faraday cell and a Pockels cell. According to Jones-matrix analysis, the electric-power information is contained in the intensity of the emerging light. An instantaneous ac electric-power signal has been observed in real time, and the active power has been measured in the 0–1-kW range. The experimental results are in good agreement with the theoretical analysis and prove the feasibility of the optical sensing system.

© 2001 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.2090) Optical devices : Electro-optical devices
(230.2240) Optical devices : Faraday effect
(230.3810) Optical devices : Magneto-optic systems
(260.5430) Physical optics : Polarization

History
Original Manuscript: December 12, 2000
Published: November 1, 2001

Citation
Yongqian Li, Changsheng Li, and Toshihiko Yoshino, "Optical electric-power-sensing system using Faraday and Pockels cells," Appl. Opt. 40, 5738-5741 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-31-5738


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References

  1. J. Zhao, J. Chen, S. Qiao, “Optical method for measuring electric power,” in Automated Optical Inspection for Industry, F. Y. Wu, S. Ye, eds., Proc. SPIE2899, 589–593 (1996). [CrossRef]
  2. R. Yao, X. Cui, C. Li, “Theoretical and experimental research on optical electric power sensing system,” Proc. Chin. Soc. Electr. Eng. 19, 12–14 (1999).
  3. A. Yariv, Optical Electronics in Modern Communications, 5th ed. (Oxford U. Press, Oxford, 1997), pp. 17–30.

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