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Proceedings Paper

Mathematical model of optimized design of multi-point sensoric measurement with Bragg gratings using wavelength divison multiplex
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Paper Abstract

Fiber Bragg gratings (FBGs) belongs to the single-point optical sensors used in many fields and applications where they often replace a standard sensors. They are easy to multiplex and the wavelength division multiplex is the most widely used method. FBGs in sensory branch are designed for a different Bragg wavelength which gives different measure and sensitivity coefficients. Existing algorithm is based on the determination of left and right boundaries of the measuring channel and the central Bragg wavelength. In this paper is presented the new mathematical model for calculation of Bragg wavelength, sensitivity coefficient and channel width of any FBG in the single step. The model takes into account the following input parameters: wavelength of the optical source, source bandwidth, the type of measured quantity, measuring ranges, width of the FBG reflected spectrum and the guard band between adjacent channels. The mathematical model is verified by using a simulation in software OptiSystem.

Paper Details

Date Published: 27 April 2016
PDF: 7 pages
Proc. SPIE 9889, Optical Modelling and Design IV, 98892F (27 April 2016); doi: 10.1117/12.2239551
Show Author Affiliations
Marcel Fajkus, VŠB-Technical Univ. of Ostrava (Czech Republic)
Jan Nedoma, VŠB-Technical Univ. of Ostrava (Czech Republic)
Stanislav Kepak, VŠB-Technical Univ. of Ostrava (Czech Republic)
Lukas Rapant, VŠB-Technical Univ. of Ostrava (Czech Republic)
Radek Martinek, VŠB-Technical Univ. of Ostrava (Czech Republic)
Lukas Bednarek, VŠB-Technical Univ. of Ostrava (Czech Republic)
Martin Novak, VŠB-Technical Univ. of Ostrava (Czech Republic)
Vladimir Vasinek, VŠB-Technical Univ. of Ostrava (Czech Republic)


Published in SPIE Proceedings Vol. 9889:
Optical Modelling and Design IV
Frank Wyrowski; John T. Sheridan; Youri Meuret, Editor(s)

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