半导体光电, 2020, 41 (2): 191, 网络出版: 2020-06-17  

基于纺锤型空气腔的光纤马赫-曾德尔折射率传感器

Optical Fiber Mach-Zehnder Refractive Index Sensor Based on Spindle Air Cavity
作者单位
南京信息工程大学 电子与信息工程学院, 南京 210044
摘要
设计了一种基于光纤纺锤型空气腔的三明治结构全光纤马赫-曾德尔折射率传感器。纺锤型空气腔是通过普通单模光纤和光子晶体光纤熔接后再拉锥形成的。锥区的纺锤型空气腔和包层分别作为参考臂和传感臂, 从而形成马赫-曾德尔干涉。基于FDTD Solutions和COMSOL仿真软件分别对传感器的干涉条纹及锥区电场分布进行了仿真, 得到了折射率传感器干涉条纹波谷波长和有效折射率与环境折射率的关系。当环境折射率为1.36~1.37和1.37~1.38时, 灵敏度分别为1377.6和1436nm/RIU。此传感器具有极短的干涉臂, 能够降低损耗, 且具有较高的折射率灵敏度。
Abstract
A sandwich-structured all-fiber Mach-Zehnder refractive index sensor based on a spindle-type air cavity was designed. The spindle-type air cavity was manufactured by splicing and taper acommon single-mode optical fiber and a photonic crystal fiber. The spindle-type air cavity and cladding in the taper area serve as the referring and sensing arms respectively, then the Mach-Zehnder interference is established. The interference fringes of the sensor and the electric field distribution in the taper area were simulated respectively based on FDTD Solutions and COMSOL. The relationship between the trough wavelength of the index sensor and the environmental refractive index, the effective refractive index and the environment refractive index are obtained by simulations. The sensitivity is 1377.6 and 1436nm/RIU when the refractive index is 1.36~1.37 and 1.37~1.38 respectively.The extremely short interference arm is used to reduce the loss and the sensor has higher refractive index sensitivity.
参考文献

[1] 毕卫红, 申 远, 刘 强, 等. 直接熔融塌陷光子晶体光纤马赫-曾德尔干涉仪的折射率传感特性[J]. 中国激光, 2014, 41(5): 81-85.

    Bi Weihong, Shen Yuan, Liu Qiang, et al. Refractive index sensing characteristics of a Mach-Zehnder interferometer based on directly photonic crystal fiber[J]. Chinese J. of Laser, 2014, 41(5): 81-85.

[2] 蔡凯杰, 葛益娴, 周俊萍. 基于双D型光纤表面等离子体共振折射率传感研究[J]. 半导体光电, 2018, 39(5): 628-633.

    Cai Kaijie, Ge Yixian, Zhou Junping. Study on refractive index sensing based on double D-type surface plasmon resonance[J]. Semiconductor Optoelectronics, 2017, 39(5): 628-633.

[3] Wu D, Zhu T, Deng M, et al. Refractive index sensing based on Mach-Zehnder interferometer formed by three cascaded single-mode fiber tapers[J]. Appl. Opt., 2011, 50(10): 1548-1553.

[4] 王婷婷, 葛益娴, 常建华, 等. 基于椭球封闭空气腔的光纤复合法布里-珀罗结构折射率传感特性研究[J]. 物理学报, 2014, 63(24): 24070101-24070110.

    Wang Tingting, Ge Yixian, Chang Jianhua, et al. Refractive index sensing characteristic of a hybrid-Fabry-Perot interferometer based on an in-fiber ellipsoidal cavity[J]. Acta Phys. Sin., 2014, 63(24): 24070101-24070110.

[5] Zhang Q, Zhou J, Chen J P, et al. Single-mode fiber refractive index sensor with large lateral offset fusion splicing between two abrupt tapers[J]. Opt. Engin., 2012, 51(9): 0905021-0905023.

[6] 付广伟, 郭 朋, 付兴虎, 等. 基于CO2激光熔融塌陷PCF Mach-Zehnder干涉仪折射率传感特性[J]. 光电子·激光, 2014, 25(9): 1657-1661.

    Fu Guangwei, Guo Peng, Fu Xinghu, et al. A refractive index sensor of PCF Mach-Zehnder interferometer based on CO2 laser fusion technology[J]. J. of Optoelectron.·Laser, 2014, 25(9): 1657-1661.

[7] Zhao Y, Li X G, Cai L. A highly sensitive Mach-Zehnder interferometric refractive index sensor based on core-offset single mode fiber[J]. Sensors & Actuators A Phys., 2015, 223: 119-124.

[8] 兆 雪, 邵 敏, 乔学光, 等. 光纤锥在线型马赫-曾德尔干涉仪的折射率传感特性[J]. 光子学报, 2016, 45(2): 02060061-02060065.

    Zhao Xue, Shao Min, Qiao Xueguang, et al. Refractive index sensing of in-fiber Mach-Zehnder interferometer based on two fiber tapers[J]. Acta Photon. Sin., 2016, 45(2): 02060061-02060065.

[9] 李辉栋, 傅海威, 邵 敏, 等. 基于光纤气泡级联的高灵敏度马赫-曾德干涉液体折射率传感器[J]. 光子学报, 2016, 45(7): 07060061-07060065.

    Li Huidong, Fu Haiwei, Shao Min, et al. In-fiber Mach-Zehnder interferometer based on cascading fiber air bubble for high sensitivity liquid refractive index measurement[J]. Acta Photonica Sinica, 2016, 45(7): 07060061-07060065.

[10] Wang Tingting, Wang Fei, Dai Yang, et al. Highly sensitive refractive index sensor based on an in-fiber droplet-shape air-cavity[J]. IEEE Photon. Technol. Lett., 2019, 31(16): 1347-1350.

戴洋, 王婷婷, 孙家程, 王菲, 花文栋. 基于纺锤型空气腔的光纤马赫-曾德尔折射率传感器[J]. 半导体光电, 2020, 41(2): 191. DAI Yang, WANG Tingting, SUN Jiacheng, WANG Fei, HUA Wendong. Optical Fiber Mach-Zehnder Refractive Index Sensor Based on Spindle Air Cavity[J]. Semiconductor Optoelectronics, 2020, 41(2): 191.

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