Analysis of temperature and strain sensitivity of fiber Bragg gratings written in dual-mode highly birefringent microstructured fibers

T. Tenderenda; M. Murawski; M. Szymanski; M. Becker; M. Rothhardt; H. Bartelt; P. Mergo; K. Poturaj; M. Makara; K. Skorupski; P. Marc; L. R. Jaroszewicz; T. Nasilowski

doi:10.1117/12.2025713

20 May 2013 Analysis of temperature and strain sensitivity of fiber Bragg gratings written in dual-mode highly birefringent microstructured fibers

T. Tenderenda, M. Murawski, M. Szymanski, M. Becker, M. Rothhardt, H. Bartelt, P. Mergo, K. Poturaj, M. Makara, K. Skorupski, P. Marc, L. R. Jaroszewicz, T. Nasilowski

Author Affiliations +

Proceedings Volume 8794, Fifth European Workshop on Optical Fibre Sensors; 879427 (2013) https://doi.org/10.1117/12.2025713
Event: Fifth European Workshop on Optical Fibre Sensors, 2013, Krakow, Poland

Abstract

Fiber Bragg gratings (FBG) are one of the most successful fiber optic technologies with very interesting perspectives for application in fiber optic sensing. It has been already reported that the possibility of its fabrication in novel microstructured fibers (MSF), creating a unique 3D structure, can significantly improve their performance and sensing properties. In this paper we present the results of FBG inscription in a dual-mode highly birefringent (HB) MSF with enhanced polarimetric strain sensitivity of the second order mode, as its mode maxima are closer to the cladding air-holes, where the strain distribution during fiber elongation is the highest. We perform an analysis and comparison of the FBG reflection and transmission characteristics, showing the effects of power coupling to cladding radiation modes. Furthermore we present the results of temperature and longitudinal strain sensitivities of the particular modes visible in the grating reflection spectrum followed by conclusions with reference to our previously reported results of polarimetric strain and temperature measurements of a similar fiber design.

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T. Tenderenda, M. Murawski, M. Szymanski, M. Becker, M. Rothhardt, H. Bartelt, P. Mergo, K. Poturaj, M. Makara, K. Skorupski, P. Marc, L. R. Jaroszewicz, and T. Nasilowski "Analysis of temperature and strain sensitivity of fiber Bragg gratings written in dual-mode highly birefringent microstructured fibers", Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 879427 (20 May 2013); https://doi.org/10.1117/12.2025713

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