Sensors, Vol. 19, Pages 4473: Recent Progress in Fabrications and Applications of Heating-Induced Long Period Fiber Gratings

Sensors, Vol. 19, Pages 4473: Recent Progress in Fabrications and Applications of Heating-Induced Long Period Fiber Gratings
Sensors doi: 10.3390/s19204473
Authors:
Fu
Wang
Liu
Bai
Liao
He
Wang

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.

Source: Sensors - October 14, 2019 Category: Biotechnology Authors: Fu Wang Liu Bai Liao He Wang Tags: Review Source Type: research