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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 26, Iss. 22 — Nov. 15, 2001
  • pp: 1755–1757

Sensitivity characteristics near the dispersion turning points of long-period fiber gratings in B/Ge codoped fiber

Xuewen Shu, Lin Zhang, and Ian Bennion  »View Author Affiliations


Optics Letters, Vol. 26, Issue 22, pp. 1755-1757 (2001)
http://dx.doi.org/10.1364/OL.26.001755


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Abstract

We report a theoretical and experimental investigation of the dispersion property of long-period fiber gratings in B/Ge codoped fiber. A novel concept of a mode ultrasensitive zone defined by a region in which the phase-matching conditions are close to the dispersion turning points is proposed. The transition from a dual-resonance state to a dispersion turning point is revealed for a set of ultrasensitive-zone gratings during the UV-writing process. We explore the sensitivity characteristics near the dispersion turning points, with the aim of implementing two types of temperature sensor with sensitivity 2 orders of magnitude higher than that of the conventional long-period gratings.

© 2001 Optical Society of America

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.2370) Fiber optics and optical communications : Fiber optics sensors

Citation
Xuewen Shu, Lin Zhang, and Ian Bennion, "Sensitivity characteristics near the dispersion turning points of long-period fiber gratings in B/Ge codoped fiber," Opt. Lett. 26, 1755-1757 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-22-1755

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