Chen Jingming, Tse Peter W, Zhang Hongchao
Opt Lett. 2017 Nov 1;42(21):4255-4258. doi: 10.1364/OL.42.004255.
The laser-based transmitter used in this Letter is composed of an integrated optical Mach-Zehnder interferometer, which was first used in fault diagnosis. With the help of the effective signal processing method and laser-based integrated optical Mach-Zehnder (IOMZ) system, the location of the defect in an aluminum plate can be successfully determined. Moreover, a comparison study is conducted to investigate the effectiveness of both the conventional laser spot source and the IOMZ interferometer-based laser source. The results indicate that the IOMZ interferometer-based method can be very useful to the nondestructive testing research field. The potential for industrial applications is also significant, especially for the health monitoring and integrity inspection of metal plates.
本信函中使用的基于激光的发射器由集成光学马赫曾德尔干涉仪组成，该干涉仪首次用于故障诊断。借助有效的信号处理方法和基于激光的集成光学马赫曾德尔（IOMZ）系统，可以成功确定铝板中缺陷的位置。此外，还进行了一项对比研究，以研究传统激光点源和基于IOMZ干涉仪的激光源的有效性。结果表明，基于IOMZ干涉仪的方法对无损检测研究领域非常有用。其工业应用潜力也很大，特别是在金属板的健康监测和完整性检测方面。
