| 数字锁相技术在光纤衰减检测中的应用 |
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| 引用本文： | 涂建坤,沈奶连,王建财,李春锋. 数字锁相技术在光纤衰减检测中的应用[J]. 现代传输, 2011, 0(3): 72-74. DOI: 10.3969/j.issn.1673-5137.2011.06.006 |
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| 作者姓名： | 涂建坤 沈奶连 王建财 李春锋 |
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| 作者单位： | 上海电缆研究所上海200093 |
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| 摘 要： | 光纤衰减是光纤传输性能测试的基本参量。本文通过对光纤衰减测试原理的分析,利用数字锁相技术,通过以计算机为核心,高精度的AD转换、配以DSP技术的数字信号处理,实现了长距离光纤衰减的检测,并通过测试结果比对表明测试系统切实可行。
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| 关 键 词： | 光纤衰减 数字锁相放大器 相关检测 PK2200 |
The Application of Digital Phase Lock Technology in the detection of Optical Fiber Attenuation |
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| TU Jian-kun,Shen Nai-lian,Wang Jian-cai,Li Chun-feng. The Application of Digital Phase Lock Technology in the detection of Optical Fiber Attenuation[J]. Mordern Transmission, 2011, 0(3): 72-74. DOI: 10.3969/j.issn.1673-5137.2011.06.006 |
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| Authors: | TU Jian-kun Shen Nai-lian Wang Jian-cai Li Chun-feng |
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| Affiliation: | TU Jian-kun,Shen Nai-lian,Wang Jian-cai,Li Chun-feng (Shanghai Electrical Cable Research Institute,Shanghai 200093,China) |
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| Abstract: | Attenuation is one of the base parameters of optical fiber transmission performance test.In this paper,based on the analysis of the optical attenuation test principle,the attenuation test of long optical fiber was realized by employment of digital phase lock technology and the high precise AD conversion on the base of PC and the DSP digital signal process.Our system was proved feasible by data comparison with PK2200 test system. |
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| Keywords: | Optical fiber Attenuation Digital lock-in amplifier Correlative detection PK2200 |
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