OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 38, Iss. 13 — May. 1, 1999
  • pp: 2808–2811

Current sensor using heterodyne detection

José A. Ferrari, Alfredo Dubra, Alfredo Arnaud, and Daniel Perciante  »View Author Affiliations

Applied Optics, Vol. 38, Issue 13, pp. 2808-2811 (1999)

View Full Text Article

Enhanced HTML    Acrobat PDF (85 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Based on the Faraday effect for measuring ac current, we describe a fiber-optic sensor that uses laser-diode intensity modulation to perform heterodyne signal detection. The sensor output at the carrier frequency is used as a reference signal to normalize the results. The sensing element consists of a few coils low-birefringence fibers between polarizers. We built the current sensor described above and tested its performance—sensitivity and noise—as functions of the angle between polarizers.

© 1999 Optical Society of America

Original Manuscript: August 25, 1998
Revised Manuscript: January 4, 1999
Published: May 1, 1999

José A. Ferrari, Alfredo Dubra, Alfredo Arnaud, and Daniel Perciante, "Current sensor using heterodyne detection," Appl. Opt. 38, 2808-2811 (1999)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. A. Papp, H. Harm, “Magnetooptical current transformer. 1: principles,” Appl. Opt. 19, 3729–3734 (1980). [CrossRef] [PubMed]
  2. A. M. Smith, “Optical fibres for current measurement applications,” Opt. Laser Technol, 25–29 (1980). [CrossRef]
  3. A. J. Rogers, “Optical fiber current measurement,” in Optical Fiber Sensor Technology, K. T. V. Grattan, B. T. Megitt, eds. (Chapman & Hall, London, 1995), pp. 421–439. [CrossRef]
  4. Y. N. Ning, Z. P. Wang, A. W. Palmer, K. T. V. Grattan, D. A. Jackson, “Recent progress in optical current sensing techniques,” Rev. Sci. Instrum. 66, 3097–3111 (1995). [CrossRef]
  5. F. Maystre, A. Bertholds, “Magneto-optic current sensor using a helical Fabry–Perot resonator,” Opt. Lett. 14, 587–592 (1989). [CrossRef] [PubMed]
  6. G. Frosio, R. Dänlicker, “Reciprocal reflection interferometer for a fiber-optic Faraday current sensor,” Appl. Opt. 33, 6111–6122 (1994). [CrossRef] [PubMed]
  7. A. D. Kersey, D. A. Jackson, “Current sensing utilizing heterodyne detection of the Faraday effect in single-mode optical fiber,” J. Lightwave Technol. 4, 640–644 (1986). [CrossRef]
  8. R. P. Tatam, D. C. Hill, J. D. C. Jones, D. A. Jackson, “All-fiber-optic polarization state azimuth control: application to Faraday rotation,” J. Lightwave Technol. 6, 1171–1176 (1988). [CrossRef]
  9. P. Akhavan Leilabady, A. P. Wayte, M. Berwick, J. D. C. Jones, D. A. Jackson, “A pseudo-reciprocal fibre-optic Faraday rotation sensor: current measurement and data communication applications,” Opt. Commun. 59, 173–176 (1986). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited