Three parameter measurement using a single fiber Bragg grating inscribed in Er<sup>3+</sup>: Yb<sup>3+</sup>-codoped fiber

C. M. Rollinson; S. Trpkovski; Scott A. Wade; N. M. Dragomir; Gregory W. Baxter; Stephen F. Collins

doi:10.1117/12.623593

23 May 2005 Three parameter measurement using a single fiber Bragg grating inscribed in Er³⁺: Yb³⁺-codoped fiber

C. M. Rollinson, S. Trpkovski, Scott A. Wade, N. M. Dragomir, Gregory W. Baxter, Stephen F. Collins

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623593
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

Abstract

A fiber Bragg grating was written, using the phase mask technique, in a short length of Er³⁺:Yb³⁺-codoped fibre and its temperature and strain characteristics were investigated. Two of the three parameters of interest are associated with Bragg grating properties, namely the usual dip at the Bragg wavelength, λB, and an unexpected dip at ~2/3 λB that is the third harmonic of features within the grating having double the assumed periodicity. The third parameter is the fluorescence intensity ratio arising from a pair of transitions in Yb³⁺ ions. This arrangement consisting of three co-located sensors offers interesting possibilities for the simultaneous measurement of three parameters.

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C. M. Rollinson, S. Trpkovski, Scott A. Wade, N. M. Dragomir, Gregory W. Baxter, and Stephen F. Collins "Three parameter measurement using a single fiber Bragg grating inscribed in Er³⁺: Yb³⁺-codoped fiber", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623593

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