Liquid refractive index and temperature measurement based on LPFG

Cheng Wang; Zheng Ping Wang; Guo Sheng Zhang; Ren De Ma; Yi Min Zhang

doi:10.1117/12.725915

5 March 2007 Liquid refractive index and temperature measurement based on LPFG

Cheng Wang, Zheng Ping Wang, Guo Sheng Zhang, Ren De Ma, Yi Min Zhang

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 65952X (2007) https://doi.org/10.1117/12.725915
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

Abstract

Based on the mode equations of the core mode LP₀₁ and the cladding mode LP_0M, combining with the phase matching condition, a method for simultaneous measurement of liquid refractive index and temperature using a single resonance peak of long-period fiber grating's transmission spectrum is proposed. The operational principle is analyzed; experiments are conducted. The theoretical results are compared with those of the experiments. The results show that they are in accordance with each other.

Citation Download Citation

Cheng Wang, Zheng Ping Wang, Guo Sheng Zhang, Ren De Ma, and Yi Min Zhang "Liquid refractive index and temperature measurement based on LPFG", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65952X (5 March 2007); https://doi.org/10.1117/12.725915

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