In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser

In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser

It is demonstrated that in this paper a peanut shaped structure cascaded with up-taper fiber structure can realize the inter mode interference between the Erbium doped fiber (EDF) core mode and cladding modes in fiber ring laser (FRL). A simple and inexpensive Mach–Zehnder interferometer...

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Main Authors: Weihao Lin, Shengjie Zhou, Li-Yang Shao, Mang I. Vai, Perry Ping Shum, Fang Zhao, Shuaiqi Liu, Jie Hu, Yuhui Liu
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Access
Subjects:
Erbium doped fiber
fiber ring laser sensor
Mach–Zehnder interferometer
Online Access:https://ieeexplore.ieee.org/document/9536571/
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spelling doaj-6ef608bc33c0405fb37eed3a2828673b2021-09-21T23:00:10ZengIEEEIEEE Access2169-35362021-01-01912812612813210.1109/ACCESS.2021.31121719536571In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring LaserWeihao Lin0https://orcid.org/0000-0002-1499-2608Shengjie Zhou1Li-Yang Shao2https://orcid.org/0000-0003-1272-1959Mang I. Vai3Perry Ping Shum4https://orcid.org/0000-0003-1391-4736Fang Zhao5Shuaiqi Liu6https://orcid.org/0000-0002-5933-502XJie Hu7Yuhui Liu8Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Computer Engineering, Faculty of Science and Technology, University of Macau, Zhuhai, MacauDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaDepartment of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, ChinaIt is demonstrated that in this paper a peanut shaped structure cascaded with up-taper fiber structure can realize the inter mode interference between the Erbium doped fiber (EDF) core mode and cladding modes in fiber ring laser (FRL). A simple and inexpensive Mach–Zehnder interferometer (MZI) based on this structure is proposed. Shown from experimental results, the optical intensity of the core mode can be coupled into the cladding modes in the first peanut-shaped structure. Then, the light in the cladding modes can be recoupled into the core mode in the up-taper structure. A high-quality interference spectrum with a signal to noise ratio about 50 dB was observed. Besides, the structure exhibits good mechanical stability when compared to MZIs based on taper or offset structure. The temperature sensitivity of the FRL sensor is 301 pm/°C and the RI sensitivity is 156 nm/RIU. This kind of MZI will have potential applications in remote sensing technique and the development of life and health.https://ieeexplore.ieee.org/document/9536571/Erbium doped fiberfiber ring laser sensorMach–Zehnder interferometer
collection DOAJ
language English
format Article
sources DOAJ
author Weihao Lin
Shengjie Zhou
Li-Yang Shao
Mang I. Vai
Perry Ping Shum
Fang Zhao
Shuaiqi Liu
Jie Hu
Yuhui Liu
spellingShingle Weihao Lin
Shengjie Zhou
Li-Yang Shao
Mang I. Vai
Perry Ping Shum
Fang Zhao
Shuaiqi Liu
Jie Hu
Yuhui Liu
In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser
IEEE Access
Erbium doped fiber
fiber ring laser sensor
Mach–Zehnder interferometer
author_facet Weihao Lin
Shengjie Zhou
Li-Yang Shao
Mang I. Vai
Perry Ping Shum
Fang Zhao
Shuaiqi Liu
Jie Hu
Yuhui Liu
author_sort Weihao Lin
title In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser
title_short In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser
title_full In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser
title_fullStr In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser
title_full_unstemmed In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser
title_sort in-fiber mach–zehnder interferometer based on er doped up-taper and peanut-shaped fiber structure in fiber ring laser
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2021-01-01
description It is demonstrated that in this paper a peanut shaped structure cascaded with up-taper fiber structure can realize the inter mode interference between the Erbium doped fiber (EDF) core mode and cladding modes in fiber ring laser (FRL). A simple and inexpensive Mach–Zehnder interferometer (MZI) based on this structure is proposed. Shown from experimental results, the optical intensity of the core mode can be coupled into the cladding modes in the first peanut-shaped structure. Then, the light in the cladding modes can be recoupled into the core mode in the up-taper structure. A high-quality interference spectrum with a signal to noise ratio about 50 dB was observed. Besides, the structure exhibits good mechanical stability when compared to MZIs based on taper or offset structure. The temperature sensitivity of the FRL sensor is 301 pm/°C and the RI sensitivity is 156 nm/RIU. This kind of MZI will have potential applications in remote sensing technique and the development of life and health.
topic Erbium doped fiber
fiber ring laser sensor
Mach–Zehnder interferometer
url https://ieeexplore.ieee.org/document/9536571/
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