OSA's Digital Library

Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • 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

Share
Citations
  • Export Citation/Save Click for help

Abstract

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

Citation
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)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-27-15-3194

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited