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Proceedings Paper

From photosensitive fibers to fiber Bragg grating sensor systems
Author(s): Hartmut Bartelt; Stephan Grimm; Volker Hagemann; M. Rothardt; Wolfgang Ecke; Reinhardt Willsch
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Paper Abstract

Fiber Bragg Gratings (FBGs) as integrated spectral fiber reflection filters have found many applications in the fields of communication and sensing. Different techniques such as the phase mask method or the interferometric method are used for recording of such FBGs with UV-light. Interferometric recording during the fiber drawing process allows the realization of complex FBG-anays in a simple way. Such FBG-arrays are especially interesting for (quasi-) distributed fiber optical sensing systems allowing measurement in parallel at different locations. We will report about improvements in dynamic recording (single pulse recording) of such FBG-arrays achieving high reflection intensities in the range of 10%. This has been achieved by optimised doping and processing of the fiber. Applications of such FBGs for measuring parameters like temperature and strain will be discussed including a specific spectral measuring system based on a grating polychromator for multiplexed measurements.

Paper Details

Date Published: 29 July 2002
PDF: 6 pages
Proc. SPIE 4900, Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life, (29 July 2002); doi: 10.1117/12.484592
Show Author Affiliations
Hartmut Bartelt, Institute for Physical High-Technology (Germany)
Stephan Grimm, Institute for Physical High-Technology (Germany)
Volker Hagemann, Institute for Physical High-Technology (Germany)
M. Rothardt, Institute for Physical High-Technology (Germany)
Wolfgang Ecke, Institute for Physical High-Technology (Germany)
Reinhardt Willsch, Institute for Physical High-Technology (Germany)

Published in SPIE Proceedings Vol. 4900:
Seventh International Symposium on Laser Metrology Applied to Science, Industry, and Everyday Life
Yuri V. Chugui; Sergei N. Bagayev; Albert Weckenmann; P. Herbert Osanna, Editor(s)

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