3D Integrated Optical E-Field Sensor for Lightning Electromagnetic Impulse Measurement

Author

Jiahong Zhang ; Fushen Chen ; Bao Sun ; Kaixin Chen ; Chengxin Li

Author_Institution

Sch. of Commun. & Inf. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

26

Issue

23

fYear

2014

fDate

Dec.1, 1 2014

Firstpage

2353

Lastpage

2356

Abstract

A 3D lithium niobate integrated electro-optical electric field (E-field) sensor utilizing three optical waveguide Mach-Zehnder interferometers has been designed, fabricated, and characterized for the measurement of lightning electromagnetic impulse (EMP). The linear detected E-fields with the sensor are 15-370 kV/m. Experimental results demonstrate that the half wave E-fields of the 3D probe are all more than 4000 kV/m which means the maximal detectable E-field can be exceed 1000 kV/m. Based on the time domain response for applying the nanosecond EMP, the frequency response of the sensor has been calculated up to 500 MHz.

Keywords

Mach-Zehnder interferometers; electro-optical devices; integrated optics; lighting; lithium compounds; niobium compounds; optical design techniques; optical fabrication; optical sensors; optical testing; optical waveguides; 3D lithium niobate integrated electro-optical electric field sensor; LiNbO₃; frequency response calculation; lightning electromagnetic impulse measurement; optical waveguide Mach-Zehnder interferometer characterization; optical waveguide Mach-Zehnder interferometer design; optical waveguide Mach-Zehnder interferometer fabrication; time domain response; Electric fields; Frequency response; Optical device fabrication; Optical interferometry; Optical sensors; Optical waveguides; Lithium niobate; lightning electromagnetic pulse (LEMP); optical waveguide Mach-Zehnder interferometer (MZI); three dimension (3D) electric field sensor;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2355209

Filename

6897945