Recent Progress in Fabrications and Applications of Heating-Induced Long Period Fiber Gratings

Cailing Fu; Yiping Wang; Shen Liu; Zhiyong Bai; Changrui Liao; Jun He; Ying Wang

doi:10.3390/s19204473

Recent Progress in Fabrications and Applications of Heating-Induced Long Period Fiber Gratings

Sensors (Basel). 2019 Oct 15;19(20):4473. doi: 10.3390/s19204473.

Authors

Cailing Fu^{1

2}, Yiping Wang^{3

4}, Shen Liu^{5

6}, Zhiyong Bai^{7

8}, Changrui Liao^{9

10}, Jun He^{11

12}, Ying Wang^{13

14}

Affiliations

¹ Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. fucailing89@163.com.
² Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China. fucailing89@163.com.
³ Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. ypwang@szu.edu.cn.
⁴ Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China. ypwang@szu.edu.cn.
⁵ Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. shenliu@szu.edu.cn.
⁶ Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China. shenliu@szu.edu.cn.
⁷ Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. baizhiyong@szu.edu.cn.
⁸ Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China. baizhiyong@szu.edu.cn.
⁹ Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. cliao@szu.edu.cn.
¹⁰ Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China. cliao@szu.edu.cn.
¹¹ Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. hejun07@szu.edu.cn.
¹² Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China. hejun07@szu.edu.cn.
¹³ Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China. yingwang@szu.edu.cn.
¹⁴ Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen 518060, China. yingwang@szu.edu.cn.

Abstract

This paper presents a review of our work concerning the recent progress in fabrications and applications of heating-induced long period fiber gratings (LPFGs). Firstly, three kinds of heating fabrication techniques based on CO₂ laser, hydrogen-oxygen flame and arc discharge are demonstrated to fabricate LPFGs, i.e., standard LPFGs (SLPFGs) and helical LPFGs (HLPFGs), in different types of optical fibers such as conventional fibers, photonic crystal fibers, and photonic bandgap fibers. Secondly, the all-fiber orbital angular momentum (OAM) mode converters based on heating-induced SLPFGs and HLPFGs in different types of fibers are studied to increase the transmission capacity. Finally, the heating-induced SLPFGs and HLPFGs are investigated to develop various LPFG-based strain, pressure, torsion and biochemical sensors.

Keywords: fiber optic sensors; long period fiber gratings; mode converter; orbital angular momentum.

Publication types

Review

Abstract

Publication types

Grants and funding