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计量学报  2024, Vol. 45 Issue (4): 503-507    DOI: 10.3969/j.issn.1000-1158.2024.04.06
  光学计量 本期目录 | 过刊浏览 | 高级检索 |
检偏器对轴角度误差对光纤环偏振耦合测量的影响研究
王学勤1,曹志峰2,梁兰菊1
1.枣庄学院光电工程学院,山东枣庄277160
2.东营市特种设备检验研究院,山东东营257091
Investigation on the Influence of Alignment Angle Error of the Polarization Analyzer on Polarization Coupling easurement of Fiber Coil
WANG Xueqin1,CAO Zhifeng2,LIANG Lanju1
1. College of Opto-Electronic Engineering, Zaozhuang University, Zaozhuang,Shandong 277160, China
2. Institute of Dongying Special Equipment Inspection, Dongying, Shandong 257091, China
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摘要 为了分析检偏器偏振轴与光纤偏振主轴间的对轴角度误差对光纤环偏振耦合强度测量结果的影响,从理论上分析了采用光相干域偏振检测(OCDP)技术测试光纤环偏振耦合强度的基本原理,建立了光纤环中偏振耦合点耦合强度与检偏器对轴角度间的关系模型。根据模型仿真分析了耦合点偏振耦合强度测量值随检偏器对轴角度的变化规律。仿真结果表明:当检偏器偏振轴与光纤环偏振轴夹角为45°时测量误差最小,夹角偏离45°越大,产生的强度测量误差越大。当检偏器偏振轴与光纤环偏振轴的对轴误差为0.6°时,对轴误差引起的偏振耦合强度测量误差为0.18dB。将对轴误差控制在3°以内,可使得偏振轴对轴误差引起的偏振耦合强度测量误差<1dB。
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王学勤
曹志峰
梁兰菊
关键词 光学计量;保偏光纤环;偏振耦合强度;对轴角度误差;检偏器光相干域偏振检测技术    
Abstract:To investigate the influence of the alignment angle error between the polarization axis of polarization analyzer and the fiber polarization axis on the measurement results of the polarization coupling intensity of the fiber coil, the basic principle of using optical coherence domain polarization detection (OCDP) technology to test the polarization coupling intensity of the fiber coil is theoretically analyzed, and the relationship model between the coupling intensity of the polarization coupling point in the fiber coil and the alignment angle of the polarization analyzer is established. According to the relationship model, the variation of the measured value of polarization coupling intensity at the coupling point with the alignment angle of the polarization analyzer is simulated and analyzed. The simulation results show that the measurement error reaches minimum when the alignment angle between the polarization axis of the polarizer and the polarization axis of the fiber coil is 45°. The more the alignment angle deviates from 45°, the greater the intensity measurement error will be. When the alignment angle error between the polarization axis of the polarization analyzer and the polarization axis of the fiber coil is 0.6°, the measurement error of the polarization coupling intensity caused by the alignment angle error is 0.18dB. The measurement error of polarization coupling intensity caused by the error of polarization axis to axis can be less than 1dB by controlling the error of alignment angle within 3°.
Key wordsoptical metrology    polarization-maintaining fiber coil;polarization coupling intensity;alignment angle error;analyzer    OCDP
收稿日期: 2023-05-19      发布日期: 2024-04-03
PACS:  TB96  
基金资助:山东省高等学校“青创科技计划”(2019KJN001);枣庄学院博士启动项目(1020710)
作者简介: 王学勤(1982-),山东青州人,枣庄学院光电工程学院副教授,主要从事光纤传感技术研究。Email:wxq8205@126.com
引用本文:   
王学勤,曹志峰,梁兰菊. 检偏器对轴角度误差对光纤环偏振耦合测量的影响研究[J]. 计量学报, 2024, 45(4): 503-507.
WANG Xueqin,CAO Zhifeng,LIANG Lanju. Investigation on the Influence of Alignment Angle Error of the Polarization Analyzer on Polarization Coupling easurement of Fiber Coil. Acta Metrologica Sinica, 2024, 45(4): 503-507.
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http://jlxb.china-csm.org:81/Jwk_jlxb/CN/10.3969/j.issn.1000-1158.2024.04.06     或     http://jlxb.china-csm.org:81/Jwk_jlxb/CN/Y2024/V45/I4/503
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