Cascaded fiber up-Taper modal interferometer and its application as fiber sensor

Shandong Dong; Bo Dong; Changyuan Yu; Yongxin Guo

doi:10.1109/JLT.2018.2878040

Cascaded fiber up-Taper modal interferometer and its application as fiber sensor

Shandong Dong, Bo Dong, Changyuan Yu, Yongxin Guo

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

6 Citations (Scopus)

Abstract

A cascaded fiber up-Taper interferometer (CFI) is proposed and demonstrated analytically and experimentally. The sensor head of the CFI consists of two cascaded miniaturized fiber up-Taper modal interferometers (MMIs). Sensing principle of the CFI is derived based on the transmission matrix method. Conclusions have been achieved that cascading MMIs can effectively improve its thermal sensitivity while strain sensitivity is reduced compared with that of the single MMI. Experimentally, thermal sensitivity of the CFI can reach 112.9 pm/°C, and almost two times as big as that of the single MMI. In contrast, its strain sensitivity is only-0.4 pm/μϵ, which is only 2/5 as small as that of the single MMI.

Original language	English
Article number	8509095
Pages (from-to)	2675-2680
Number of pages	6
Journal	Journal of Lightwave Technology
Volume	37
Issue number	11
DOIs	https://doi.org/10.1109/JLT.2018.2878040
Publication status	Published - 1 Jun 2019

Keywords

Fiber interferometer
fiber optics sensors
strain and temperature

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

More information

10.1109/JLT.2018.2878040

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abstract = "A cascaded fiber up-Taper interferometer (CFI) is proposed and demonstrated analytically and experimentally. The sensor head of the CFI consists of two cascaded miniaturized fiber up-Taper modal interferometers (MMIs). Sensing principle of the CFI is derived based on the transmission matrix method. Conclusions have been achieved that cascading MMIs can effectively improve its thermal sensitivity while strain sensitivity is reduced compared with that of the single MMI. Experimentally, thermal sensitivity of the CFI can reach 112.9 pm/°C, and almost two times as big as that of the single MMI. In contrast, its strain sensitivity is only-0.4 pm/μϵ, which is only 2/5 as small as that of the single MMI.",

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AU - Dong, Shandong

AU - Dong, Bo

AU - Yu, Changyuan

AU - Guo, Yongxin

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AB - A cascaded fiber up-Taper interferometer (CFI) is proposed and demonstrated analytically and experimentally. The sensor head of the CFI consists of two cascaded miniaturized fiber up-Taper modal interferometers (MMIs). Sensing principle of the CFI is derived based on the transmission matrix method. Conclusions have been achieved that cascading MMIs can effectively improve its thermal sensitivity while strain sensitivity is reduced compared with that of the single MMI. Experimentally, thermal sensitivity of the CFI can reach 112.9 pm/°C, and almost two times as big as that of the single MMI. In contrast, its strain sensitivity is only-0.4 pm/μϵ, which is only 2/5 as small as that of the single MMI.

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Cascaded fiber up-Taper modal interferometer and its application as fiber sensor

Abstract

Keywords

ASJC Scopus subject areas

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