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QINGSHAN CHEN1,2,* , NAIGUANG LU2, XINZHU SANG1, FENG JIANG2
To suppress the beat noise of a low-coherence fiber interferometric system, noise constitutes in the system is analyzed and an optical fiber filter is used in the experiment. Experimental result shows that, with a filter with FWHM of 4nm, the spectral mismatch between test arm and reference arm decreases from 49 nm to 4 nm, so the beat noise in the recorded interferogram is significantly suppressed and the visibility is also noticeably improved.
Beat noise, Low-coherence interference, Fiber filter.
QINGSHAN CHEN, NAIGUANG LU, XINZHU SANG, FENG JIANG, Suppression of beat noise in low-coherence fiber interferometric system, Optoelectronics and Advanced Materials - Rapid Communications, 1, 9, September 2007, pp.448-451 (2007).
Submitted at: Aug. 16, 2007
Accepted at: Aug. 15, 2007
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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