Signal-to-noise ratio for mode-mode fiber interferometer

被引:3
|
作者
Kotov, Oleg [1 ]
Chapalo, Ivan [1 ]
机构
[1] Peter Great St Petersburg Polytech Univ, Fiber Opt Lab, Dept Radio Phys, 29 Polytechnicheskaya St, St Petersburg 195251, Russia
关键词
mode-mode interference; speckle pattern; multimode fiber; intermodal interference; distributed sensors; specklegram sensors; SNR; signal-to-noise ratio; OPTICAL-FIBER;
D O I
10.1117/12.2270272
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
In this paper we focus on the subject of signal-to-noise ratio (SNR) estimation for mode-mode fiber interferometer (MFI). The main problem of this issue is MFI signal fading which leads to unstable response and transfer function of MFI and does not allow correct SNR evaluation. To solve this problem the method of normalized averaged characteristics is developed and applied. SNR dependencies on different MFI parameters and for different cases of fiber launching conditions are calculated and analyzed.
引用
收藏
页数:6
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