High temperature sensing with single material silica optical fibers

Stephen C. Warren-Smith; Linh V. Nguyen; Heike Ebendorff-Heidepriem; Tanya M. Monro

doi:10.1117/12.2265205

23 April 2017 High temperature sensing with single material silica optical fibers

Stephen C. Warren-Smith, Linh V. Nguyen, Heike Ebendorff-Heidepriem, Tanya M. Monro

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103233M (2017) https://doi.org/10.1117/12.2265205
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

We present recent developments in high temperature sensing using single material silica optical fibers. By using a single material fiber, in this case a suspended-core fiber, we avoid effects due to dopant diffusion at high temperature. This allows the measurement of temperatures up to the dilatometric softening temperature at approximately 1300°C. We demonstrate and compare high temperature sensing in two configurations. The first exploits a small section of single material fiber spliced onto a length of conventional single mode fiber, which operates through multimode interference. The second utilizes a type II fiber Bragg grating written via femtosecond laser ablation.

Citation Download Citation

Stephen C. Warren-Smith, Linh V. Nguyen, Heike Ebendorff-Heidepriem, and Tanya M. Monro "High temperature sensing with single material silica optical fibers", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103233M (23 April 2017); https://doi.org/10.1117/12.2265205

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