Raman scattering in single-crystal YAG for application in distributed temperature sensing

S. Bera; J. Wuenschell; J. Thapa; M. Buric; B. Liu

doi:10.1117/12.2577835

5 March 2021 Raman scattering in single-crystal YAG for application in distributed temperature sensing

S. Bera, J. Wuenschell, J. Thapa, M. Buric, B. Liu

Proceedings Volume 11682, Optical Components and Materials XVIII; 1168217 (2021) https://doi.org/10.1117/12.2577835
Event: SPIE OPTO, 2021, Online Only

Abstract

Single crystal fibers have shown great potential for harsh environment sensing applications. Interrogation schemes based on temperature dependence of Raman scattering modes in crystals, offer capability of sensing at high temperatures. Yttrium aluminum garnet (YAG) is a potential alternate to sapphire as it also has similar material properties like high melting point and chemical resistance. In this work, Raman scattering in YAG samples have been measured from room temperature to 1000°C. Temperature dependence of the peak position, and peak width are measured and compared for the different peaks. A Raman based Optical time domain reflectometry (OTDR) is constructed and distributed temperature measurements of a furnace are conducted using a YAG crystal fiber.

Conference Presentation

Citation Download Citation

S. Bera, J. Wuenschell, J. Thapa, M. Buric, and B. Liu "Raman scattering in single-crystal YAG for application in distributed temperature sensing", Proc. SPIE 11682, Optical Components and Materials XVIII, 1168217 (5 March 2021); https://doi.org/10.1117/12.2577835

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