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In-Fiber Mach–Zehnder Interferometer Sensor Based on Er Doped Fiber Peanut Structure in Fiber Ring Laser

A novel temperature sensor based on rare earth fiber peanut (REFP) shape structure in fiber ring laser (FRL) is proposed and demonstrated. A single-mode rare earth doped fiber is used to fabricate a peanut structure to produce Mach-Zehnder interferometer (MZI). Benefited from the strong thermo-optic effect of rare earth ions in fiber, high sensitivity measurement of temperature is exploited to realize. More importantly, there is no need for additional filters compared to traditional fiber laser sensors. The sensitivity of refractive index (RI) was measured to further verify the sensing performance of MZI. The experimental results show that compared with the external sensing unit, the Er-doped fiber peanut (EDFP) structure has higher thermo-optic effect coefficient and superior temperature sensitivity. The temperature and RI sensitivity of the EDFP is 0.158 nm/°C and -19.55 nm/RIU, respectively. The optical fiber MZI sensor based on the EDFP has the advantages of high sensitivity, good repeatability, simple fabrication, and compact structure. It has good application prospects in biomedicine, aerospace, and marine development.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.39 No.10 May 15 2021

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 3350 - 3357

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

TEMPERATURE SENSOR
FIBER RING LASER
MACH–ZEHNDER INTERFEROMETER
PEANUT SHAPE STRUCTURE

Info Detail Spesifik

DOI: 10.1109/JLT.2021.3062864

Pernyataan Tanggungjawab

Weihao Lin, Li-Yang Shao, Mang I Vai, Perry Ping Shum, Shuaiqi Liu, Yibin Liu, Fang Zhao, Dongrui Xiao, Yuhui Liu, Yidong Tan, Weizhi Wang

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