| 基于后向喇曼散射测温系统APD最佳雪崩增益分析 |
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| 引用本文： | 常程,李铮,等.基于后向喇曼散射测温系统APD最佳雪崩增益分析[J].四川激光,2001,22(1):17-19. |
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| 作者姓名： | 常程 李铮 |
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| 作者单位： | 北京航空航天大学电子工程系!北京100083 |
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| 摘 要： | 本文对基于后向Raman散射分布式光纤测温系统中APD的最佳雪崩增益Mopt进行了分析。文中系统讨论了APD雪崩增益和入射光功率、APD的工作温度和APD的偏置电压等的关系。提出了一套温度控制加偏压调节保持最佳雪崩增益的方法，并给出了偏压调节方程式。最后，针对系统提出了系统APD最佳雪崩增益的概念，给出了具体计算方法。实验结果证明分析是合理、正确的。
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| 关 键 词： | APD 后向喇曼散射 光纤测温系统 最佳雪崩增益分析 |
| 修稿时间： | 2000年6月5日 |
Analysis of Optimal APD Avalanche Gain in Distributed Temperature Sensor System Based on the Raman-Backscattering |
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| Chang Cheng,Li Zheng,Zhou Yinqing.Analysis of Optimal APD Avalanche Gain in Distributed Temperature Sensor System Based on the Raman-Backscattering[J].Laser Journal,2001,22(1):17-19. |
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| Authors: | Chang Cheng Li Zheng Zhou Yinqing |
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| Abstract: | The analysis of the optimal avalanche gain M opt in the distributed temperature sensor system based on the Raman-backscattering is presented.Firstly,the relationship between the M opt and the incidence light power,operational temperature and the bias voltage systematically is analyzed.Secondly,a novel adjustment equation on how to maintain M opt effectively cooperated with temperature control measurement is discussed.At last,the concept about the M opt-system based on the probability theory plus the algorithm is brought forward.Results are proved reasonable and correct by data of experiences.And it has been proved effective in the similar cases. |
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| Keywords: | Raman temperature optical fiber APD |
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