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In recent years, tapered optical fibers (TOFs) have attracted increasing interest and developed into a range of devices used in many practical applications ranging from optical communication, sensing to optical manipulation and high-Q resonators. Compared with conventional optical fibers, TOFs possess a range of unique features, such as large evanescent field, strong optical confinement, mechanical flexibility and compactness. In this review, we critically summarize the multimode interference in TOFs and some of its applications with a focus on our research project undertaken at the Optoelectronics Research Centre of the University of Southampton in the United Kingdom.
Wang, P., Zhao, H. & Wang, X. (2018). A Review of Multimode Interference in Tapered Optical Fibers and Related Applications. Sensors (Basel), vol. 14, no. 18, pp. 1-29. doi:10.3390/s18030858