OSA's Digital Library

Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 27, Iss. 15 — Aug. 1, 2009
  • pp: 3194–3201

Measurements of the Birefringence and Verdet Constant in an Air-Core Fiber

He Wen, Matthew A. Terrel, Hyang Kyun Kim, Michel J. F. Digonnet, and Shanhui Fan

Journal of Lightwave Technology, Vol. 27, Issue 15, pp. 3194-3201 (2009)

View Full Text Article

Acrobat PDF (249 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

  • Export Citation/Save Click for help


In order to determine the Verdet constant of an air-core photonic bandgap fiber (PBF), the birefringence of the fiber needs to be accurately known. We used two methods to measure the linear and circular birefringence of a commercial PBF around 1.5 $\mu{\hbox {m}}$. The linear birefringence beat length is found to vary significantly with wavelength, ranging from 6.8 $\pm$ 0.2 cm at 1526.8 nm to 9.5 $\pm$ 0.4 cm at 1596.8 nm. The circular birefringence is observed to be weaker by a factor of at least ten. The Verdet constant of this fiber, measured using a Faraday-effect measurement, is 6.1 $\pm$ 0.3 mrad/T/m. This value is in broad agreement with the prediction of a numerical model, and it confirms that the Verdet constant of this fiber is dominated by the residual spatial overlap of the mode with silica. It is also found to be 90 times weaker than the Verdet constant of a solid-core fiber (SMF-28) measured by the same process (0.55 $\pm$ 0.01 rad/T/m, in agreement with published values). This significantly reduced susceptibility to magnetic fields points to yet another benefit of air-core fibers in the fiber optic gyroscope.

© 2009 IEEE

He Wen, Matthew A. Terrel, Hyang Kyun Kim, Michel J. F. Digonnet, and Shanhui Fan, "Measurements of the Birefringence and Verdet Constant in an Air-Core Fiber," J. Lightwave Technol. 27, 3194-3201 (2009)

Sort:  Year  |  Journal  |  Reset


  1. K. Hotate, K. Tabe, "Drift of an optical fiber gyroscope caused by the Faraday effect: Influence of the Earth's magnetic field," Appl. Opt. 25, 1086-1092 (1986).
  2. H. K. Kim, M. J. F. Digonnet, G. S. Kino, "Air-core photonic-bandgap fiber gyroscope," J. Lighw. Technol. 24, 3169-3174 (2006).
  3. M. Wegmuller, M. Legré, N. Gisin, T. Hansen, C. Jakobsen, J. Broeng, "Experimental investigation of the polarization properties of a hollow core photonic bandgap fiber for 1550 nm," Opt. Expr. 13, 1457-1467 (2005).
  4. F. Poletti, N. G. Broderick, D. Richardson, T. Monro, "The effect of core asymmetries on the polarization properties of hollow core photonic bandgap fibers," Opt. Expr. 13, 9115-9124 (2005).
  5. G. Bouwmans, F. Luan, J. C. Knight, P. S. J. Russell, L. Farr, B. J. Mangan, H. Sabert, "Properties of hollow-core photonic bandgap fiber at 850 nm wavelength," Opt. Expr. 11, 1613-1620 (2003).
  6. T. Chartier, A. Hideur, C. Özkul, F. Sanchez, G. Stéphan, "Measurement of the elliptical birefringence of single-mode optical fibers," Appl. Opt. 40, 5343-5353 (2001).
  7. M. Terrel, M. J. F. Digonnet, S. Fan, "Polarization controller for hollow-core fiber," Opt. Lett. 32, 1524-1526 (2007).
  8. M. T. Steel, T. P. White, C. M. De Sterke, R. C. McPhedran, L. C. Botten, "Symmetry and degeneracy in microstructured optical fibers," Opt. Lett. 26, 488-490 (2001).
  9. A. M. Smith, "Polarization and magneto-optic properties of single-mode optical fiber," Appl. Opt. 17, 52-56 (1978).
  10. J. L. Cruz, M. V. Andres, M. A. Hernandez, "Faraday effect in standard optical fibers: Dispersion of the effective Verdet constant," Appl. Opt. 35, 922-927 (1996).
  11. A. H. Rose, S. M. Etzel, C. M. Wang, "Verdet constant dispersion in annealed optical fiber current sensors," J. Lightw. Technol. 15, 803-807 (1997).
  12. D. Jacob, M. Vallet, F. Bretenaker, A. Le Floch, R. La Naour, "The Malus Fabry–Perot interferometer," Appl. Phys. Lett. 66, 3546-3548 (1995).
  13. P. A. Williams, A. H. Rose, G. W. Day, T. E. Milner, M. N. Deeter, "Temperature dependence of the Verdet constant in several diamagnetic glasses," Appl. Opt. 30, 1176-1178 (1991).
  14. G. W. Day, D. N. Payne, A. J. Barlow, J. J. Ramskov-Hansen, "Faraday rotation in coiled, monomode optical fibers: Isolators, filters, and magnetic sensors," Opt. Letters 7, 238-240 (1982).

Cited By

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.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited