Journal
OPTICS COMMUNICATIONS
Volume 282, Issue 6, Pages 1129-1134Publisher
ELSEVIER
DOI: 10.1016/j.optcom.2008.12.003
Keywords
Fiber Bragg gratings; Photonic crystal fibers; Optical fiber sensors
Categories
Funding
- Alexander von Humboldt Foundation
- National Science Foundation of China [60507013]
- Thuringian Ministry of Education and Cultural Affairs.
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We report about fiber Bragg gratings (FBGs) inscribed in two different types of small-core Ge-doped photonic crystal fibers with a UV laser. Sensing properties of the FBGs were systematically investigated by means of demonstrating the responses of Bragg wavelengths to temperature, strain, bending, and transverse-loading. The Bragg wavelength of the FBGs shifts toward longer wavelengths with increasing temperature, tensile strain, and transverse-loading. Moreover, the bending and transverse-loading properties of the FBGs are sensitive to the fiber orientations. The reasonable analyses for these sensing properties also are presented. (c) 2008 Elsevier B.V. All rights reserved.
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