| 可调谐法布里-珀罗滤波器的高精度大范围实时定标 |
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| 引用本文： | 乔学光,王瑜,傅海威,赵大壮,王炜,张晶.可调谐法布里-珀罗滤波器的高精度大范围实时定标[J].光学学报,2008,28(5):852-855. |
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| 作者姓名： | 乔学光 王瑜 傅海威 赵大壮 王炜 张晶 |
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| 作者单位： | 西安石油大学陕西省光电传感测井重点实验室,陕西,西安,710065 |
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| 基金项目： | 国家自然科学基金
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国家高技术研究发展计划(863计划)
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中国石油天然气集团公司资助项目
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陕西省教育厅资助项目
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陕西省西安市科技局科技计划
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中国石油天然气股份有限公司长庆油田分公司庆咸管道线路工程光纤光栅检测项目 |
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| 摘 要： | 将乙炔(C2H2)气体的吸收光谱作为标准波长参考,对可调谐光纤法布里-珀罗滤波器进行波长实时定标,使解调系统的测量精度提高到1 pm.根据可调谐光纤法布里-珀罗滤波器谐振波长的周期性,提出了大波长范围的波长定标方法,从而可以在1525～1615 nm的范围内对可调谐光纤法布里-珀罗进行精确定标,实现了高精度大波长范围的信号探测.相比于传统的以光纤光栅作为波长参考的定标方法,该方法的测量精度、测量范围、系统运行可靠性都大为改善.
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| 关 键 词： | 光纤光学 光纤光栅传感 信号解调 可调谐光纤法布里一珀罗滤波器 气体吸收池 |
| 收稿时间： | 2007/9/28 |
High-Accuracy Real Time Calibration of Tunable Fabry-Pérot Filter on Large Range |
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| Qiao Xueguang,Wang Yu,Fu Haiwei,Zhao Dazhuang,Wang Wei,Zhang Jing.High-Accuracy Real Time Calibration of Tunable Fabry-Pérot Filter on Large Range[J].Acta Optica Sinica,2008,28(5):852-855. |
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| Authors: | Qiao Xueguang Wang Yu Fu Haiwei Zhao Dazhuang Wang Wei Zhang Jing |
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| Abstract: | Absorption spectrum of acetylene (C2H2) is used as the wavelength reference to calibrate the tunable fiber Fabry-Pérot (TFFP) filter in real time, and the accuracy of interrogation system based on TFFP has been improved. According to the free spectrum periodic characteristic of TFFP, a method to increase the wavelength calibration range was proposed. The system has a resolution of 1 pm over a working range of 1525～1615 nm in experiment. Compared with many traditional wavelength reference methods, this interrogation method is greatly improved in measurement precision, wavelength range and working reliability. |
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| Keywords: | fiber optics fiber-optical grating sensing signal demodulation tunable fiber Fabry-Pérot filter gas cell |
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