Correlation method of processing single fiber multimode interferometer (SFMI) signals using a charge coupled device

被引：0
|
作者：
Kulchin, Y. N. [1 ]
Vitrik, O. B. [1 ]
Lantsov, A. D. [1 ]
机构：
[1] Russian Acad Sci, Far Eastern Branch, Inst Automat & Control Proc, Vladivostok 690041, Russia
来源：
FUNDAMENTAL PROBLEMS OF OPTOELECTRONICS AND MICROELECTRONICS III, PTS 1 AND 2 | 2007年 / 6595卷
关键词：
fibre interferometer; correlation method for signal processing; speckle pattern;
D O I：
10.1117/12.725808
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The correlation method for processing signals from a single-fibre multimode interferometer by using a digital-charge-coupled device is studied experimentally and theoretically. Optimal conditions are determined for recording multimode interference patterns with charge-coupled devices. It is found that the nonlinearity of characteristics of such devices affects the results of correlation measurements. The method for eliminating this influence is proposed. The correlation method considered in the paper allows one to measure a linear deformation of the interferometer within 0-80 mu m with an accuracy of similar to 3 mu m for typical single-mode fibres with the core diameter 50 mu m.
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页数：11
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