Fiber-optic temperature sensor based on inline core-cladding-mode Mach–Zehnder interferometry with dynamically controllable sensing length | Zendy

Heeyoung Lee | Zendy; Chenxu Zhao | Zendy; Takaki Kiyozumi | Zendy; Kentaro Nakamura | Zendy; Yosuke Mizuno | Zendy

Open Access

Fiber-optic temperature sensor based on inline core-cladding-mode Mach–Zehnder interferometry with dynamically controllable sensing length

Author(s) -

Heeyoung Lee,

Chenxu Zhao,

Takaki Kiyozumi,

Kentaro Nakamura,

Yosuke Mizuno

Publication year - 2022

Publication title -

applied physics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.911

H-Index - 94

eISSN - 1882-0786

pISSN - 1882-0778

DOI - 10.35848/1882-0786/ac47a7

Subject(s) - mach–zehnder interferometer , interferometry , materials science , cladding (metalworking) , fiber optic sensor , optical fiber , optics , single mode optical fiber , optoelectronics , sensitivity (control systems) , cable gland , fabrication , electronic engineering , computer science , physics , telecommunications , engineering , composite material , medicine , alternative medicine , pathology

A variety of fiber-optic temperature sensors based on inline Mach–Zehnder interferometry (MZI) have been implemented for their ease of fabrication and cost efficiency, but it is difficult to control the length of the sensing area (i.e. the fiber section with sensitivity). Herein, we develop a new temperature sensor based on inline MZI by connecting two single-mode fibers (SMFs) with different mode-field diameters and by applying a load to one of the SMFs. The fiber section between the connector and the load operates as the sensing area, the length of which can be dynamically controlled by changing the load position.

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