Review of femtosecond-laser-inscribed fiber Bragg gratings: fabrication technologies and sensing applications

J He, B Xu, X Xu, C Liao, Y Wang - Photonic Sensors, 2021 - Springer
Fiber Bragg grating (FBG) is the most widely used optical fiber sensor due to its compact
size, high sensitivity, and easiness for multiplexing. Conventional FBGs fabricated by using …

Optical fiber sensors for high-temperature monitoring: a review

S Ma, Y Xu, Y Pang, X Zhao, Y Li, Z Qin, Z Liu, P Lu… - Sensors, 2022 - mdpi.com
High-temperature measurements above 1000° C are critical in harsh environments such as
aerospace, metallurgy, fossil fuel, and power production. Fiber-optic high-temperature …

Femtosecond laser-based processing methods and their applications in optical device manufacturing: A review

X Wang, H Yu, P Li, Y Zhang, Y Wen, Y Qiu, Z Liu… - Optics & Laser …, 2021 - Elsevier
The unique advantages of surface and volume processing enabled by femtosecond laser
fabrication makes it one of the most powerful tools for manufacturing optical and photonic …

Femtosecond laser inscription of fiber Bragg grating in twin-core few-mode fiber for directional bend sensing

K Yang, J He, C Liao, Y Wang, S Liu, K Guo… - Journal of Lightwave …, 2017 - opg.optica.org
We demonstrated femtosecond laser inscription of fiber Bragg gratings (FBGs) in a twin-core
few-mode fiber (TC-FMF) for directional bend sensing. An FBG was selectively inscribed in …

Simultaneous measurement of strain and temperature by a sawtooth stressor-assisted highly birefringent fiber Bragg grating

K Guo, J He, L Shao, G Xu, Y Wang - Journal of Lightwave …, 2020 - opg.optica.org
We propose and demonstrate a highly birefringent fiber Bragg grating (Hi-Bi FBG) fabricated
for the simultaneous measurement of strain and temperature. A birefringence of up to 2.96× …

Advances in Fibre Bragg Grating (FBG) Sensing: A Review of Conventional and New Approaches and Novel Sensing Materials in Harsh and Emerging Industrial …

SP Kok, Y li Go, X Wang, MLD Wong - IEEE Sensors Journal, 2024 - ieeexplore.ieee.org
Sensing technology plays an important role in enabling innovation and efficiency in diverse
industries, particularly in harsh and emerging environments where conventional sensing …

Negative-index gratings formed by femtosecond laser overexposure and thermal regeneration

J He, Y Wang, C Liao, C Wang, S Liu, K Yang… - Scientific Reports, 2016 - nature.com
We demonstrate a method for the preparation of negative-index fibre Bragg gratings (FBGs)
using 800 nm femtosecond laser overexposure and thermal regeneration. A positive-index …

Temperature-insensitive directional transverse load sensor based on dual side-hole fiber Bragg grating

J He, B Xu, S Ju, M Hou, K Guo, X Xu, Y Wang, S Liu… - Optics …, 2021 - opg.optica.org
We propose and demonstrate a temperature-insensitive directional transverse load sensor
based on a fiber Bragg grating (FBG) inscribed in a section of dual side-hole fiber (DSHF) …

[PDF][PDF] 飞秒激光时空整形电子动态调控加工微光学元件

吴梦楠, 李晓炜, 向志昆, 张乐仪, 杨炎培… - Chinese Journal of …, 2022 - researching.cn
摘要飞秒激光加工具有精度高, 无污染, 材料适用性广, 热效应小等特点, 在加工微光学元件方面
有着独特的优势. 通过对飞秒激光进行时间和空间整形, 调控电子动态及其后续的电子 …

Hybrid intrinsic optical fiber sensor fabricated by femtosecond laser with enhanced sensitivity by Vernier effect

T Paixao, R Ferreira, F Araujo, P Antunes - Optics & Laser Technology, 2021 - Elsevier
A hybrid sensor, for temperature and strain discrimination, comprising a Fiber Bragg grating
(FBG) and two Fabry-Pérot interferometers (FPIs) both fabricated by a femtosecond laser …