抑制激光干涉条纹增强激光波长调制信噪比的方法研究

doi:10.3969/j.issn.1007-5461.2025.03.012

量子电子学报 ›› 2025, Vol. 42 ›› Issue (3): 405-413.doi: 10.3969/j.issn.1007-5461.2025.03.012

抑制激光干涉条纹增强激光波长调制信噪比的方法研究

程鑫 1,2,3, 曹亚南 1,2,3*, 马燕莺 1,2,3, 李燕 1,2,3, 程刚 1,2,3, 田兴 1,2,3

1 安徽理工大学机械工业矿山采选装备智能化重点实验室, 安徽淮南 232000; 2 安徽理工大学深部煤矿采动响应与灾害防控国家重点实验室, 安徽淮南 232000; 3 安徽理工大学机械工程学院, 安徽淮南 232000

收稿日期:2023-07-10 修回日期:2024-06-04 出版日期:2025-05-28 发布日期:2025-05-28
通讯作者: Email: cynpf@mail.ustc.edu.cn E-mail:Email: cynpf@mail.ustc.edu.cn
作者简介:程鑫 ( 1999 - ), 安徽阜阳人, 研究生, 主要从事高灵敏度激光吸收光谱技术及其应用方面的研究。Email: cx1194676586@163.com
基金资助:
机械工业矿山采选装备智能化重点实验室开放基金 (2022KLMI06), 安徽省高等学校科学研究项目 (2023AH051194), 国家自然科学基金项目 (62105005), 安徽省高校优秀青年人才支持计划项目 (gxyq2021179), 煤炭安全精准开采国家地方联合工程研究中心开放基金 (EC2021010)

A method of suppressing laser interference fringes to enhance signal⁃to⁃noise ratio of laser wavelength modulation

CHENG Xin 1,2,3 , CAO Yanan 1,2,3*, MA Yanying 1,2,3 , LI Yan 1,2,3 , CHENG Gang 1,2,3 , TIAN Xing 1,2,3

1 Key Laboratory of Intelligent Mining Equipment in Mechanical Industry, Anhui University of Science and Technology, Huainan 232000, China; 2 State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232000, China; 3 School of Mechatronics Engineering, Anhui University of Science and Technology, Huainan 232000, China

Received:2023-07-10 Revised:2024-06-04 Published:2025-05-28 Online:2025-05-28

摘要/Abstract

摘要： 为了抑制密集型光学多通池产生的光学干涉条纹, 提高气体传感器的探测精度和灵敏度, 本研究提出了一种在整数倍 (100) 自由光谱范围的数据平均方法, 通过优化平均数据点数, 显著提高了痕量气体检测的精度、灵敏度与信噪比 (SNR)。研究结果表明, 相比较传统干涉条纹抑制方法, 得到的二次谐波信号的基线标准偏差分别为 0.019 arb. units 和 0.063 arb. units, 而新型干涉条纹抑制法对应的基线标准偏差降至 0.003 arb. units 和 0.0066 arb. units, 分别提升 6.33 倍和 9.55 倍; 信噪比分别提高 4.24 倍和 6.48 倍; 探测灵敏度为 0.0008 μg/m³, 提升 3.75倍; 探测精度由0.753 μg/m³优化至0.49 μg/m³, 提升1.5倍。本研究初步证明了所提方法可有效抑制光学干涉条纹对测量结果的影响。

关键词: 波动光学, 光学干涉条纹抑制, 特定光谱范围信号处理法, 信噪比

Abstract: To suppress the optical interference fringes generated by dense-pattern optical multipass cells and enhance the detection accuracy and sensitivity of gas sensors, this work proposes a data averaging method within integer multiples (100) of the free spectral range to suppress laser optical interference fringes, in which the detection accuracy,sensitivity, and signal-to-noise ratio (SNR) for trace gas can be improved by investigating optimal average number of data points. Experimental results demonstrate that compared with the baseline standard deviations of 0.019 arb. units and 0.063 arb. units of the second harmonic signal obtained by the conventional interference fringe suppression method, those obtained by the porposed novel interference fringe suppression method 0.003 arb. units and 0.0066 arb. units respectively, increasing 6.33 times and 9.55 times correspondingly. The SNR of the novel method is increased by factors of 4.24 and 6.48 respectively. The detection sensitivity is 0.0008 ug/m−3 , increased by a factor of approximately 3.75. The detection accuracy is 0.49 ug/m−3 , increased by about 1.5 times. It is indicated that this proposed mthod can effectively mitigate the influence of optical interference fringes on measurement outcomes.

Key words: wave optics, suppression of optical interference fringes, signal processing in specific spectral range, signal-to-noise ratio

中图分类号:

O433

程鑫, 曹亚南, 马燕莺, 李燕, 程刚, 田兴, . 抑制激光干涉条纹增强激光波长调制信噪比的方法研究[J]. 量子电子学报, 2025, 42(3): 405-413.

CHENG Xin , , CAO Yanan , MA Yanying , , LI Yan , , CHENG Gang , , TIAN Xing , . A method of suppressing laser interference fringes to enhance signal⁃to⁃noise ratio of laser wavelength modulation[J]. Chinese Journal of Quantum Electronics, 2025, 42(3): 405-413.

参考文献

[1]聂伟, 阚瑞峰, 杨晨光, 等.可调谐二极管激光吸收光谱技术的应用研究进展[J].中国激光, 2018, 45(09):9-29 [2]Nie W, Kan R F, Yang C G, et al.Progress in Rearch on Application of Tunable Diode Laser Absorption Spectroscopy Technology[J].Chinese Journal of Lasers, 2018, 45(09):9-29 [3]刘丽娴, 陈柏松, 宦惠庭, 等.面向工业园区的多组分痕量气体光声光谱同时检测[J].物理学报, 2022, 71(17):158-165 [4]Liu L X, ChenB S, HuanH T, et al.Simultaneous Detection of Multi-Component Trace Gases by Photoacoustic Spectroscopy for Industrial Park[J].Acta Physica Sinica, 2022, 71(17):158-165 [5]马维光, 李志新, 谭巍, 等.电光调制器输入端光纤温度对光纤频率调制光谱影响的研究[J].光谱学与光谱分析, 2014, 34(02):472-476 [6]Ma W G, Li Z X, Tan W, et al.Study on the Effect of Temperature of Optical Fiber at Input End of Electro-Optic Modulator on Fiber Frequency Modulation Spectra[J].Spectroscopy and Spectral Analysis, 2014, 34(02):472-476 [7]李明星, 刘建国, 阚瑞峰, 等.基于可调谐半导体激光吸收光谱的和实时检测系统设计[J].光学学报, 2015, 35(04):399-405 [8]Li M X, Liu J G, Kan R F, et al.Design of Real-time Detection System for CO and CH4 Based on Tunable Semiconductor Laser Absorption Spectroscopy[J].Acta Optica Sinica, 2015, 35(04):399-405 [9]王兴平, 赵刚, 焦康, 等.光学反馈线性腔衰荡光谱技术不确定性[J].物理学报, 2022, 71(12):49-57 [10]Wang X P, Zhao G, Jiao K, et al.Uncertainty of Optical Feedback Linear Cavity Ring-Down Spectroscopy Technique[J].Acta Physica Sinica, 2022, 71(12):49-57 [11]程桐, 杨天悦, 宫廷, 等.光学反馈腔增强吸收光谱技术中干涉抑制方法[J].物理学报, 2022, 71(06):353-358 [12]Cheng T, Yang T Y, Gong T, et al.Interference Suppression Method in Optical Feedback Cavity Enhanced Absorption Spectroscopy[J].Acta Physica Sinica, 2022, 71(06):353-358 [13]方波, 赵卫雄, 杨娜娜, 等.光学多通池的研制及应用[J].量子电子学报, 2021, 38(05):617-632 [14]Fang B, Zhao W X, Yang N N, et al.Development and Applications of Optical Multi-Pass Cells[J].Chinese Journal of Quantum Electronics, 2021, 38(05):617-632 [15]Yang C G, Liang M, Wang X P, et al.Simultaneous measurement of gas absorption and path length by employing the first harmonic phase angle method in wavelength modulation spectroscopy[J].Optics express, 2020, 28(03):3289-3297 [16]Teng C C, ZHANG Eric J, Xiong C, et al.Dynamic computational optical fringe mitigation in tunable laser absorption spectroscopy[J].Optics express, 2020, 28(26):39017-39023 [17]Liu X N, Ma Y F.Sensitive carbon monoxide detection based on light-induced thermoelastic spectroscopy with a fiber-coupled multipass cell Invited[J].Chinese Optics Letters, 2022, 20(03):18-22 [18]Feng S L, Qiu X B, Guo G Q, et al.Palm-Sized Laser Spectrometer with High Robustness and Sensitivity for Trace Gas Detection Using a Novel Double-Layer Toroidal Cell[J].Analytical chemistry, 2021, 93(10):4552-4558 [19]Masiyano D, Hodgkinson J, Tatam R P.Gas cells for tunable diode laser absorption spectroscopy employing optical diffusers. Part 2: Integrating spheres[J].[J].Applied Physics B: Lasers and Optics, 2010, 100(02):303-312 [20]Hodgkinson J, Masiyano D, Tatam R P.Gas cells for tunable diode laser absorption spectroscopy employing optical diffusersPart 1: single and dual pass cells[J].Applied Physics B: Lasers and Optics, 2010, 100(02):291-302 [21]Ma Y F, Lewicki R, Razeghi M, et al.QEPAS based ppb-level detection of CO and N2O using a high power CW DFB-QCL[J].Optics express, 2013, 21(01):1008-1019 [22]Silver J A, Slanton A C.Optical interference fringe reduction in laser absorption experiments[J].Applied optics, 1988, 27(10):1914-1916 [23]Cui R Y, Dong L, Wu H P, et al.Highly sensitive and selective CO sensor using a 233 μm diode laser and wavelength modulation spectroscopy[J].Optics express, 2018, 26(19):24318-24328 [24]Ciaffoni L, Couper J, Hancock G, et al.RF noise induced laser perturbation for improving the performance of non-resonant cavity enhanced absorption spectroscopy[J].Optics express, 2014, 22(14):17030-17038 [25]Meng Y X, Liu T G, Liu K, et al.A Modified Empirical Mode Decomposition Algorithm in TDLAS for Gas Detection(Article)[J].IEEE Photonics Journal, 2014, 6(06):1-7 [26]Christopher R W.Brewster-plate spoiler: a novel method for reducing the amplitude of interference fringes that limit tunable-laser absorption sensitivities[J].JOSA B, 1985, 2(9):1464-1470 [27]Zheng C T, Ye W L, Huang J Q, et al.Performance improvement of a near-infrared CH4 detection device using wavelet-denoising-assisted wavelength modulation technique(Article)[J][J].Sensors and Actuators, B: Chemical, 2014, 190(2):249-258

抑制激光干涉条纹增强激光波长调制信噪比的方法研究

A method of suppressing laser interference fringes to enhance signal⁃to⁃noise ratio of laser wavelength modulation

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