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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 21 — Oct. 17, 2007
  • pp: 13936–13941

Origin of coupling to antisymmetric modes in arc-induced long-period fiber gratings

O. V. Ivanov and G. Rego  »View Author Affiliations


Optics Express, Vol. 15, Issue 21, pp. 13936-13941 (2007)
http://dx.doi.org/10.1364/OE.15.013936


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Abstract

We study the origin of antisymmetric perturbation of the fiber in arc-induced long-period gratings that couple the core mode into the antisymmetric cladding modes. We demonstrate that this perturbation is caused by the temperature gradient in the fiber, which is induced, in turn, by the temperature gradient in the arc discharge. The reproducibility of the process of the grating inscription is higher when the fiber is placed in a region with larger temperature gradient.

© 2007 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(060.2340) Fiber optics and optical communications : Fiber optics components

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 7, 2007
Revised Manuscript: August 13, 2007
Manuscript Accepted: August 13, 2007
Published: October 8, 2007

Citation
O. V. Ivanov and G. Rego, "Origin of coupling to antisymmetric modes in arc-induced long-period fiber gratings," Opt. Express 15, 13936-13941 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-21-13936


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References

  1. G. Rego, R. Falate, J. L. Fabris, J. L. Santos, H. M. Salgado, S. L. Semjonov, and E. M. Dianov, "Arc-induced long-period gratings in aluminosilicate glass fibers," Opt. Lett. 30, 2065-2067 (2005). [CrossRef] [PubMed]
  2. G. Rego, A. Fernandez Fernandez, A. Gusarov, B. Brichard, F. Berghmans, J. L. Santos, and H. M. Salgado, "Effect of ionizing radiation on the properties of long-period fiber gratings," Appl. Opt. 44, 6258-6263 (2005). [CrossRef] [PubMed]
  3. G. Rego, R. Falate, O. Ivanov, and J. L. Santos, "Simultaneous temperature and strain measurements performed by a step-changed arc-induced long-period fiber grating," Appl. Opt. 46, 1392-1396 (2007). [CrossRef] [PubMed]
  4. G. Rego, O. Ivanov, and P. V. S. Marques, "Demonstration of coupling to symmetric and antisymmetric cladding modes in arc-induced long-period fiber gratings," Opt. Express 14, 9594-9599 (2006). [CrossRef] [PubMed]
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  10. G. Rego, O. Ivanov, P. V. S. Marques, and J. L. Santos, "Investigation of formation mechanisms of arc-induced long-period fiber gratings," in Proc. of OFS-18, paper TuE84 (2006).
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