Wei Zan , Qing Bai , Xinyi Liu , Mingyuan Yang , Yu Wang , Baoquan Jin
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引用次数: 0
Abstract
A nonuniform probe compensation method is proposed for gain spectrum calibration in the distributed Brillouin optical time-domain analyzer (BOTDA). Pseudo-random distributed power fluctuations are quantified by determining the slow-changing component from the Lorentzian fitting residuals of the raw gain spectrum and compensated. Experimental results indicate that the normalized Brillouin gain uncertainty is suppressed from 10.08 % to 0.24 %. The fitting coefficient between the ΔBFS and temperature variation is improved to 0.9999, with the average fitting residual decreasing from 3.41 MHz to 0.27 MHz. The research demonstrates that the method effectively mitigates the impact of optical power instability, significantly improving BFS accuracy in BOTDA.
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Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication.
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