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Phase retrieval algorithm is an important part of optic‐fiber interferometry system. In this article, drift of the retrieved signal caused by the time delay difference between two interference signals from… Click to show full abstract
Phase retrieval algorithm is an important part of optic‐fiber interferometry system. In this article, drift of the retrieved signal caused by the time delay difference between two interference signals from asymmetric 3 × 3 coupler is theoretically analyzed, and a compensation algorithm to solve this problem is proposed. Through simulation and experiment in real sensing system, the compensation algorithm can effectively eliminate the signal drift induced by the time delay difference, and enhance the accuracy of the signal in real sensing system.
Journal Title: Microwave and Optical Technology Letters
Year Published: 2019
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