High-spatial-resolution φ-OFDR shape sensor based on multicore optical fiber with femtosecond-laser-induced permanent scatter arrays

被引：26

作者：

Fu, Cailing ^{[1
,2
]}

Meng, Yanjie ^{[1
,2
]}

Chen, Lin ^{[1
,2
]}

Zhong, Huajian ^{[1
,2
]}

Du, Chao ^{[1
,2
]}

He, Jun ^{[1
,2
]}

Weng, Xiaoyu ^{[1
]}

Liu, Liwei ^{[1
]}

Qu, Junle ^{[1
]}

Wang, Yiping ^{[1
,2
]}

机构：

[1] Shenzhen Univ, Coll Phys & Optoelect Engn, Key Lab Optoelect Devices & Syst, Minist Educ GuangDong Prov, Shenzhen 518060, Peoples R China

[2] Shenzhen Univ, Guangdong & Hong Kong Joint Res Ctr Opt Fibre Sens, Shenzhen Key Lab Photon Devices & Sensing Syst Int, Shenzhen 518060, Peoples R China

来源：

OPTICS LETTERS | 2023年 / 48卷 / 12期

基金：

中国国家自然科学基金;

关键词：

ACCURACY; PHASE; CORES;

D O I：

10.1364/OL.486644

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An optical fiber (p-OFDR shape sensor with a submillime-ter spatial resolution of 200 & mu;m was demonstrated by using femtosecond-laser-induced permanent scatter array (PS array) multicore fiber (MCF). A PS array was successfully inscribed in each slightly twisted core of the 400-mm-long MCF. The two-dimensional (2D) and three-dimensional (3D) shapes of the PS-array-inscribed MCF were successfully reconstructed by using PS-assisted (p-OFDR, vector projec-tions, and the Bishop frame based on the PS-array-inscribed MCF. The minimum reconstruction error per unit length of the 2D and 3D shape sensor was 2.21% and 1.45%, respec-tively. & COPY; 2023 Optica Publishing Group

引用

页码：3219 / 3222

页数：4

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