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23 May 2005 Long-term thermal stability tests at 1000 degree C of silica fiber Bragg grating made with ultrafast laser radiation
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Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623474
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium
Abstract
Using an ultrafast Ti:sapphire IR laser and a phase mask, fiber Bragg gratings (FBGs) with high thermal stability were fabricated in SMF-28 fiber for sensor applications and were subjected to long annealing tests at 1000 °C. FBGs that maintained more then 99.95 % reflectivity after several hundred hours at this temperature are demonstrated. The gratings perform well in cycling experiments up to 1000 °C and hysteresis in the wavelength response was not detected. The capability of this new type of FBG to be used for high temperature sensors is briefly discussed.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dan Grobnic, Christopher W. Smelser, Stephen James Mihailov, and Robert Bruce Walker "Long-term thermal stability tests at 1000 degree C of silica fiber Bragg grating made with ultrafast laser radiation", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623474
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