An integrated electro-optic magnetic field sensor based on reflected Mach-Zehnder interferometer

被引：5
|
作者：
Zhang, Jiahong [1 ]
Wan, Xiaorong [1 ]
Li, Yingna [1 ]
Zhao, Zhengang [1 ]
Li, Chuan [1 ,2 ]
机构：
[1] Kunming Univ Sci & Technol, Fac Informat Engn & Automat, Kunming, Yunnan, Peoples R China
[2] Kunming Intellignet Measurement Sci & Technol Co, Kunming, Yunnan, Peoples R China
来源：
OPTIK | 2018年 / 157卷
基金：
中国国家自然科学基金;
关键词：
Integrated optical waveguide; Reflective Mach-Zehnder interferometer (MZI); Electro-optic (EO) effect; Loop antenna; Magnetic field sensor; WAVE-GUIDE MODULATOR; ANTENNA;
D O I：
10.1016/j.ijleo.2017.11.095
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An optical magnetic field sensor using reflective Lithium niobate (LiNbO3) integrated optical waveguide Mach-Zehnder interferometer (MZI) has been proposed, designed and fabricated. The bare chip size of the sensor is microminiaturized as small as 20 x 5 x 0.5 mm(3). Experiment results reveal that the sensor has wide frequency response from 10 MHz to 2 GHz with variation less than +/- 3.3 dB. Besides, the input/output of the sensor exhibit linear relationship as the magnetic field varied from 69.4 dB mu A/m to 129.4 dB mu A/m. The minimum detectable magnetic field is 65.4 dB mu A/m and the dynamic range of the sensor is more than 60 dB. (C) 2017 Elsevier GmbH. All rights reserved.
引用
收藏
页码：315 / 318
页数：4
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