基于微结构光纤的温度传感器研究

doi:10.3969/j.issn.0255-8297.2020.02.004

Abstract

Abstract: A variety of microstructured fber temperature sensors, including intermodalinterference types of Mach-Zehnder, Michelson and F-P interferometers and fluorescence type based on demodulation method, have been studied comprehensively and profoundly.The corresponding theories, sensor systems and functional devices are constructed. Among these works, a novel multi-parameter fluorescence fber temperature sensor with a new signal processing method based on the strong correlation between excitation light and fluorescence was proposed. And based on a small segment of liquid-flled microstructured fber, an all-fber Mach-Zehnder temperature fber sensor with ultrahigh sensitivity of -1.83 nm/℃ was developed. In addition, a Michelson-type high temperature fber sensor with a tiny probe size of only 1.03 mm was achieved by utilizing a high-order mode in all-solid photonic bandgap fber. Moreover, a grape-type microstructured fber F-P interferometer sensor for high temperature measurement was proposed and demonstrated. The high temperature sensor performs a sensitivity of 17.7 pm/℃ at 1 570 nm and a high measurable temperature of up to 1 000 ℃.

Key words: microstructured fber, temperature sensor, fluorescence, intermodal interference

CLC Number:

P751.1

GENG Youfu, LI Xuejin. Research on Temperature Sensors Based on Microstructured Fiber[J]. Journal of Applied Sciences, 2020, 38(2): 260-278.

References

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Research on Temperature Sensors Based on Microstructured Fiber

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