Hole-assisted three-core fiber directional coupler operated in reflection mode for vector bending measurement

被引：0

作者：

Ye, Peng ^{[1
,2
]}

Yang, Jing ^{[1
,2
]}

Li, Binbing ^{[1
,2
]}

Gao, Shan ^{[1
,2
]}

Liu, Yan ^{[1
,2
]}

Liu, Bo ^{[1
,2
]}

Bai, Yao ^{[1
,2
]}

Zheng, Yulin ^{[1
,2
]}

Mao, Guopei ^{[3
]}

Yuan, Libo ^{[4
]}

Guan, Chunying ^{[1
,2
]}

机构：

[1] Harbin Engn Univ, Coll Phys & Optoelect Engn, Key Lab Infiber Integrated Opt, Minist Educ, Harbin 150001, Peoples R China

[2] Harbin Engn Univ, Coll Phys & Optoelect Engn, Key Lab Photon Mat & Devices Phys Ocean Applicat, Minist Ind & Informat Technol China, Harbin 150001, Peoples R China

[3] Beijing Inst Telemetry, Beijing 100076, Peoples R China

[4] Guilin Univ Elect Technol, Photon Res Ctr, Sch Elect Engn & Automat, Guilin 541004, Peoples R China

来源：

OPTICS EXPRESS | 2024年 / 32卷 / 25期

基金：

中国国家自然科学基金;

关键词：

LONG-PERIOD FIBER; OPTICAL-FIBER; SENSOR; TEMPERATURE; CURVATURE; CORE; GRATINGS;

D O I：

10.1364/OE.541861

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a vector bending sensor operated in reflection mode based on a hole-assisted three-core fiber (HATCF) coupler. The sensor is built by splicing a piece of HATCF with a gold film-coated end to a single-mode fiber (SMF). The gold film on the center core end is etched with femtosecond laser and only the lights transmitted in the two suspended cores of the HATCF are reflected. The center core couples with the two suspended cores at different wavelengths, respectively. The bending direction and curvature are identified by monitoring the wavelength of the two coupled peaks. The maximum curvature sensitivity of the sensor is 15.146 nm/m-1. The temperature sensitivity is less than - 58.8 pm/degrees C. The vector bending sensor operated in reflection mode has the advantages of a compact structure and simple transmission line, which is conducive to the miniaturization and integration of optical fiber bending sensors.

引用

页码：43997 / 44007

页数：11

共 23 条

[21] Pure Directional Bending Measurement With a Fiber Bragg Grating at the Connection Joint of Eccentric-Core and Single-Mode Fibers
Kong, Jing
Ouyang, Xiaowei
Zhou, Ai
Yu, Haihu
Yuan, Libo
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2016, 34 (14) : 3288 - 3292
[22] Study of the Performance of an All-Optical Half-Adder Based on Three-Core Non-Linear Directional Fiber Coupler Under Delayed and Instantaneous Non-Linear Kerr Responses
Menezes, J. W. M.
Fraga, W. B.
Lima, F. T.
Guimaraes, G. F.
Ferreira, A. C.
Lyra, M. L.
Sombra, A. S. B.
FIBER AND INTEGRATED OPTICS, 2011, 30 (03) : 201 - 230
[23] Design and Analysis of Trench-Assisted Low-Bending-Loss Large-Mode-Field-Area Multi-Core Fiber with an Air Hole
Jia, Renjie
Lian, Yudong
Wang, Yulei
Lu, Zhiwei
PHOTONICS, 2021, 8 (07)

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