光学学报, 2016, 36 (9): 0923001, 网络出版: 2016-09-09  

用于光谱吸收式气体传感系统的空芯波导的小型化研究

Research on Miniaturization of Hollow Waveguide for Spectrum Absorptive Gas Sensing System
作者单位
复旦大学信息科学与工程学院, 上海 200433
摘要
基于空芯波导的柔韧性可以将若干米长的波导弯曲至半径若干厘米的圆盒内,配合光源及检测器即可得到光程长、气体容积小、响应速度快的小型化气体传感系统。建立了一种基于几何光学理论的弯曲波导传输模型,通过仿真与实验研究了弯曲空芯波导的传输与传感特性,总结了通过优化波导长度、弯曲半径、系统信噪比、波导孔径及光源发散角等参数降低系统检测极限、提高灵敏度的方法。
Abstract
Because of the flexibility of hollow waveguide, the waveguide with several meters long can be bent inside a round box with a radius of only several centimeters. By using light source and detector, the miniaturized gas sensing system with long optical path, small gas volume and fast response can be obtained. A curved waveguide transmission model based on geometrical optics theory is established. The transmission and sensing characteristics of bent hollow waveguide are investigated by simulation and experiment. The methods to reduce system detection limit and improve sensitivity by optimizing such parameters like the waveguide length, bending radius, system signal to noise ratio, waveguide aperture and light source divergence angle are summarized.
参考文献

[1] Laj P, Klausen J, Bilde M, et al. Measuring atmospheric composition change[J]. Atmospheric Environment, 2009, 43(33): 5351-5414.

[2] 姚路, 刘文清, 刘建国, 等. 基于TDLAS的长光程环境大气痕量CO监测方法研究[J]. 中国激光, 2015, 42(2): 0215003.

    Yao Lu, Liu Wenqing, Liu Jianguo, et al. Research on open-path detection for atmospheric trace gas CO based on TDLAS[J]. Chinese J Lasers, 2015, 42(2): 0215003.

[3] Smith D, Spanel P. The challenge of breath analysis for clinical diagnosis and therapeutic monitoring[J]. Analyst, 2007, 132(5): 390-396.

[4] Chahal R, Starecki F, Boussard-Pledel C, et al. Fiber evanescent wave spectroscopy based on IR fluorescent chalcogenide fibers[J]. Sensors & Actuators B: Chemical, 2016, 229: 209-216.

[5] Hodgkinson J, Tatam R P. Optical gas sensing: A review[J]. Measurement Science & Technology, 2012, 24(1): 111-123.

[6] 赵建华, 赵崇文, 魏周君, 等. 基于近红外光谱技术的多组分毒性气体检测研究[J]. 光学学报, 2010, 30(2): 567-573.

    Zhao Jianhua, Zhao Chongwen, Wei Zhoujun, et al. Study on monitoring multi-component toxic gases based on near-infrared spectroscopic method[J]. Acta Optica Sinica, 2010, 30(2): 567-573.

[7] Herriott D R, Schulte H J. Folded optical delay lines[J]. Applied Optics, 1965, 4(8): 883-889.

[8] Stambler N, Dubinsky Z. Corals as light collectors: An integrating sphere approach[J]. Coral Reefs, 2005, 24(1): 1-9.

[9] Ferguson D W, Rao K N, Mickelson M E, et al. An experimental study of the 4-0 and 5-0 quadrupole vibration rotation bands of H2 in the visible[J]. Journal of Molecular Spectroscopy, 1993, 160(2): 315-325.

[10] 隋可融, 汤晓黎, 朱晓松, 等. 高性能Ag/AgI红外空芯光纤的研究[J]. 光子学报, 2007, 37(11): 2186-2190.

    Sui Kerong, Tang Xiaoli, Zhu Xiaosong, et al. Infrared Ag/AgI hollow waveguides with high performance[J]. Acta Photonica Sinica, 2007, 37(11): 2186-2190.

[11] 石艺尉, 周志云, 汤晓黎, 等. 吸收式气敏传感空芯光纤的设计和制备[J]. 红外与毫米波学报, 2009, 28(2): 111-114.

    Shi Yiwei, Zhou Zhiyun, Tang Xiaoli, et al. Design and fabrication of infrared hollow fibers for spectroscopic gas sensing[J]. Journal of Infrared & Millimeter Waves, 2009, 28(2): 111-114.

[12] 周佳琦, 陆维佳, 孙帮山, 等. 空芯光纤气体传感气室的优化设计[J]. 光学学报, 2012, 32(2): 0222008.

    Zhou Jiaqi, Lu Weijia, Sun Bangshan, et al. Optimization of hollow fiber as absorption cells for gas sensing[J]. Acta Optica Sinica, 2012, 32(2): 0222008.

[13] Zhou J Q, Lu W J, Yao Z R, et al. Optimization of hollow waveguides as absorption cells for spectroscopic gas sensing[J]. Applied Spectroscopy, 2013, 67(3): 301-306.

[14] 曾旋, 刘炳红, 何宇婧, 等. 近红外低损耗AgI/Ag空芯光纤的制作[J]. 光学学报, 2013, 33(3): 0306001.

    Zeng Xuan, Liu Binghong, He Yujing, et al. Fabrication of low-loss AgI/Ag hollow fibers for laser light delivery in the near infrared region[J]. Acta Optica Sinica, 2013, 33(3): 0306001.

[15] Saito M, Matsuura Y, Kawamura M, et al. Bending losses of incoherent light in circular hollow waveguides[J]. Journal of the Optical Society of America A, 1990, 7(11): 2063-2068.

[16] Miyagi M, Kawakami S. Design theory of dielectric-coated circular metallic waveguides for infrared transmission[J]. Journal of Lightwave Technology, 1984, 2(2): 116-126.

[17] Miyagi M, Kawakami S. Losses and phase constant changes caused by bends in the general class of hollow waveguides for the infrared[J]. Applied Optics, 1981, 20(24): 4221-4226.

卫雨青, 魏静怡, 朱晓松, 石艺尉. 用于光谱吸收式气体传感系统的空芯波导的小型化研究[J]. 光学学报, 2016, 36(9): 0923001. Wei Yuqing, Wei Jingyi, Zhu Xiaosong, Shi Yiwei. Research on Miniaturization of Hollow Waveguide for Spectrum Absorptive Gas Sensing System[J]. Acta Optica Sinica, 2016, 36(9): 0923001.

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