基于双光栅级联结构的温度及浓度传感特性测试

研究了长周期光纤光栅( LPFG)级联布拉格光纤光栅(FBG)结构的温度及浓度传感特性。利用飞秒激光直写制作LPFG并级联FBG, 且FBG波谷位于1 551.9 nm, LPFG波谷位置为1 560.5 nm。在30~50 ℃温度变化范围内对传感器温度特性进行测试, 并在25 ℃超净环境下对浓度为3%~30%的葡萄糖溶液进行敏感性测试。实验结果表明: 升温过程FBG中心波长发生红移, 灵敏度26.36 pm/℃, 线性度0.950 8; LPFG中心波长发生蓝移, 灵敏度-24.55 pm/℃, 线性度0.914 2。降温过程FBG中心波长发生蓝移, 灵敏度25.00 pm/℃, 线性度0.945 8; LPFG中心波长发生红移, 灵敏度为-21.82 pm/℃, 线性度0.921 2。FBG对浓度变化不敏感, 当浓度由3%增至30%时, LPFG中心波长发生蓝移, 灵敏度196.36 pm, 线性度0.956 5。结果表明该光纤传感器灵敏度高, 线性度好, 可以同时动态实现温度和浓度的测量。

Abstract

A dual-grating cascade structure based on long period fiber grating (LPFG) cascaded with fiber Bragg grating (FBG) for temperature and concentration measurement has been proposed. The proposed fiber sensor was cascaded by LPFG micromachined by the femtosecond laser and FBG, and the transmission spectrum has two valleys, namely FBG valley at 1 551.9 nm and LPFG valley at 1 560.5 nm. The temperature and concentration sensing characteristics of the proposed sensor were measured at 30-50 ℃ and 3%-30%, respectively. The experimental results show that when the temperature rises, the FBG shows red shift with increasing wavelength, the sensitivity is 26.36 pm/℃, and the linearity is 0.950 8; on the contrast, the LPFG shows blue shift with decreasing wavelength, the sensitivity is -24.55 pm/℃, and the linearity is 0.914 2. When the temperature falls, the FBG shows blue shift with decreasing wavelength, the sensitivity is 25.00 pm/℃, and the linearity is 0.945 8; the LPFG shows red shift with increasing wavelength, the sensitivity is -21.82 pm/℃, and the linearity is 0.921 2. The FBG is not sensitive to the concentration variation. When the glucose concentration rises from 3% to 30%, the LPFG shows blue shift with decreasing wavelength, the sensitivity is 196.36 pm, and the linearity is 0.956 5. The proposed sensor has high sensitivity and good linearity for dual-parameter measurements.

参考文献

[1] 刘铁根, 王双, 江俊峰,等. 航空航天光纤传感技术研究进展[J]. 仪器仪表学报, 2014, 35(8): 1681-1692.

Liu Tiegen, Wang Shuang, Jiang Junfeng, et al. Advances in optical fiber sensing technology for aviation and aerospace application [J]. Chinese Journal of Scientific Instrument, 2014, 35(8): 1681-1692. (in Chinese)

[2] 张发祥, 吕京生, 姜邵栋,等. 高灵敏抗冲击光纤光栅微振动传感器[J]. 红外与激光工程, 2016, 45(8): 0822002.

Zhang Faxiang, Lv Jingsheng, Jiang Shaodong, et al. High sensitive fiber Bragg grating micro-vibration sensor with shock resistance [J]. Infrared and Laser Engineering, 2016, 45(8): 0822002. (in Chinese)

[3] 徐国权, 熊代余. 光纤光栅传感技术在工程中的应用[J]. 中国光学, 2013, 6(3): 306-317.

Xu Guoquan, Xiong Daiyu. Applications of fiber Bragg grating sensing technology in engineering[J]. Chinese Optics, 2013, 6(3): 306-317. (in Chinese)

[4] 王花平, 向平. 基于应变传递理论的光纤传感器优化设计[J]. 光学精密工程, 2016, 24(6): 1233-1241.

Wang Huaping, Xiang Ping. Optimization design of optical fiber sensors based on strain transfer theory[J]. Optics and Precision Engineering, 2016, 24(6): 1233-1241. (in Chinese)

[5] 吴晶, 吴晗平, 黄俊斌,等. 用于船舶结构监测的大量程光纤布拉格光栅应变传感器[J]. 光学精密工程, 2014, 22(2): 311-317.

Wu Jing, Wu Hanping, Huang Junbin, et al. Large range FBG sensor for ship structure health monitoring [J]. Optics and Precision Engineering, 2014, 22(2): 311-317. (in Chinese)

[6] 秦海琨, 张敏, 刘育梁,等. 光纤光栅生物传感器的研究进展综述[J]. 激光杂志, 2008, 29(5): 1-3.

Qin Haikun, Zhang Min, Liu Yuliang, et al. Review: recent research development in fiber grating biosensor [J]. Laser Journal, 2008, 29(5): 1-3. (in Chinese)

[7] 罗涛, 顾铮. 光子晶体光纤光栅在生物和化学传感器领域研究进展[J]. 激光与光电子学进展, 2009, 46(11): 34-40.

Luo Tao, Gu Zheng. Progress of biological and chemical sensors based on long period grating in photonic crystal fiber [J]. Laser & Optoelectronics Progress, 2009, 46(11):34-40. (in Chinese)

[8] 姚建铨, 邸志刚, 贾春荣, 等. 基于表面增强拉曼散射的光子晶体光纤传感器[J]. 红外与激光工程, 2011, 40(1): 96-106.

Yao Jianquan, Di Zhigang, Jia Chunrong, et al. Photonic crystal fiber SERS sensors [J]. Infrared and Laser Engineering, 2011, 40(1): 96-106. (in Chinese)

[9] Tong Z, Luan P, Cao Y, et al. Dual-parameter optical fiber sensor based on concatenated down-taper and multimode fiber[J]. Optics Communications, 2016, 358(1): 77-81.

[10] 赵明富, 王念, 罗彬彬,等. 可同时测量蔗糖浓度和温度的组合光纤光栅传感器[J]. 中国光学, 2014, 7(3): 476-482.

Zhao Mingfu, Wang Nian, Luo Binbin, et al. Simultaneous measurement of temperature and concentration of sugar solution based on hybrid fiber grating sensor [J]. Chinese Optics, 2014, 7(3): 476-482. (in Chinese)

[11] Gouveia C, Jorge P A S, Baptista J M, et al. Fabry-Pérot cavity based on a high-birefringent fiber bragg grating for refractive index and temperature measurement[J]. Sensors Journal IEEE, 2012, 12(1): 17-21.

[12] Yuan J, Zhao C L, Zhou Y, et al. Reflective long-period fiber grating-based sensor with Sagnac fiber loop mirror for simultaneous measurement of refractive index and temperature[J]. Applied Optics, 2014, 53(29): 85-90.

[13] 康泽新, 孙将, 马林,等. 基于双芯光纤级联布拉格光纤光栅的温度与应力解耦双测量传感系统[J]. 光学学报, 2015, 35(5): 0506004.

Kang Zexin, Sun Jiang, Ma Lin, et al. Decoupling dual measurement sensor system of temperature and strain based on twin-core fiber cascaded with fiber bragg grating [J]. Acta Optica Sinica, 2015, 35(5): 0506004. (in Chinese)

[14] Wu S, Yan G, Wang C, et al. FBG incorporated side-open fabry-perot cavity for simultaneous gas pressure and temperature measurements[J]. Journal of Lightwave Technology, 2016, 34(16): 1-1.

[15] 苏耿华, 徐德刚, 石嘉,等. 基于保偏光纤和LPFG的Sagnac环温度及环境折射率双参量光纤传感器研究[J]. 光电子·激光, 2017, 28(1): 25-31.

Su Genghua, Xu Degang, Shi Jia, et al. A dual-parameter sensor for temperature and refractive index based on a Sagnac loop composed of an LPFG and polarization maintaining fiber [J]. Journal of Optoelectronics·Laser, 2017, 28(1): 25-31. (in Chinese)

[16] 伍鹏. 基于光纤表面等离子共振传感技术的葡萄糖浓度测量方法研究[D]. 天津: 天津大学, 2012.

Wu Peng. Research on glucose concentration measuring method based on fiber-optic surface plasmon resonace technique [D]. Tianjin: Tianjin University, 2012. (in Chinese)

[17] 杨蕊竹. 长周期光纤光栅的特性及传感应用的研究[D]. 长春: 吉林大学, 2012.

Yang Ruizhu. Characterization and sensing application of long period fiber gratings [D]. Changchun: Jilin University, 2012. (in Chinese)

张雯, 刘小龙, 何巍, 娄小平, 祝连庆. 基于双光栅级联结构的温度及浓度传感特性测试[J]. 红外与激光工程, 2017, 46(9): 0917006. Zhang Wen, Liu Xiaolong, He Wei, Lou Xiaoping, Zhu Lianqing. Measurement of temperature and concentration sensing characteristics based on dual-grating cascade structure[J]. Infrared and Laser Engineering, 2017, 46(9): 0917006.

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