Temperature and strain self-compensated refractometer based on turning point of Mach–Zehnder interference in three-core fiber

• Main Authors: Wei, Yefen, Wu, Zhifang, Wang, Xicheng, Shum, Perry Ping, Shao, Xuguang, Pu, Jixiong
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2023
• Subjects: Engineering::Electrical and electronic engineering; Three-Core Fiber; Mach–Zehnder Interference
• Online Access: https://hdl.handle.net/10356/172856
• Institution: Nanyang Technological University

We demonstrate an in-line Mach–Zehnder interference with a dispersion turning point (DTP) by sandwiching a section of three-core fiber (TCF) between two short no-core fibers (NCFs). The interference occurs mainly between the center core mode and a cladding mode of the TCF, which are excited and reco...