Optics express
Enhancing precision in dispersion measurements of chirped fiber Bragg gratings with wavelet-based denoising.
Dongyu Yan, Bowen Liu, Yisu Wang, Youjian Song, Minglie Hu
Published: 202510.1364/OE.575576
Abstract
A wavelet-based denoising method is proposed to improve the precision of group delay dispersion (GDD) measurements of chirped fiber Bragg gratings (CFBGs) in spectral interferometry. By analyzing the sparsity changes of wavelet detail coefficients, t…
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