期刊
IEEE PHOTONICS TECHNOLOGY LETTERS
卷 35, 期 16, 页码 870-873出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2023.3286116
关键词
Vernier effect; 3 x 3 coupler; strain sensor; jones matrix; Hi-Bi fiber
In this study, a new configuration based on a 3x3 coupler and two fiber loop mirrors in series is demonstrated. This compact configuration allows for exploration of the Vernier effect. Experimental results show a sensitivity of 74.9 +/- 0.2 pm/ mu epsilon for the Vernier envelope and 6.41 +/- 0.01 pm/mu epsilon for the Vernier carrier. A magnification factor of 5.2 for the Vernier envelope is obtained compared to using only one fiber loop mirror interferometer. Theoretical analysis and simulation results show good agreement with the experimental data.
In this letter, a new configuration based on two fiber loop mirrors in series using a 3x3 coupler is demonstrated. This configuration is compact and can explore the Vernier effect. The results obtained were a sensitivity of 74.9 +/- 0.2 pm/ mu epsilon for the Vernier envelope and 6.41 +/- 0.01 pm/mu epsilon for the Vernier carrier. These results were compared to the sensitivity of the setup using only one fiber loop mirror interferometer, obtaining 14.41 +/- 0.01 pm/mu epsilon. This means a magnification factor of 5.2 for the Vernier envelope. Theoretical treatment of the system was carried out, using Jones matrix calculus, and the subsequent simulation results are also presented, having obtained good agreement with the experimental data.
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