Review of femtosecond laser direct writing fiber-optic structures based on refractive index modification and their applications

J Zhao, Y Zhao, Y Peng, R Lv, Q Zhao - Optics & Laser Technology, 2022 - Elsevier
Femtosecond (fs) laser pulses direct writing technology has been extensively employed to
achieve microfabrication in various optical fibers for a broad range of applications. In this …

3D manufacturing of glass microstructures using femtosecond laser

A Butkutė, L Jonušauskas - Micromachines, 2021 - mdpi.com
The rapid expansion of femtosecond (fs) laser technology brought previously unavailable
capabilities to laser material processing. One of the areas which benefited the most due to …

Two-dimensional vector bending sensor based on seven-core fiber Bragg gratings

M Hou, K Yang, J He, X Xu, S Ju, K Guo, Y Wang - Optics Express, 2018 - opg.optica.org
We demonstrated a two-dimensional vector-bending sensor by use of fiber Bragg gratings
(FBGs) inscribed in a homogeneous seven-core fiber. Seven FBGs were simultaneously …

Line-by-line fiber Bragg grating made by femtosecond laser

K Zhou, M Dubov, C Mou, L Zhang… - IEEE Photonics …, 2010 - ieeexplore.ieee.org
In this letter, we report on the inscription of a fourth-order fiber Bragg grating made line-by-
line in the optical fiber using a femtosecond laser. Strong Bragg resonance (~ 17 dB) and …

Femtosecond laser fabrication of nanograting-based distributed fiber sensors for extreme environmental applications

M Wang, K Zhao, J Wu, Y Li, Y Yang… - … Journal of Extreme …, 2021 - iopscience.iop.org
The femtosecond laser has emerged as a powerful tool for micro-and nanoscale device
fabrication. Through nonlinear ionization processes, nanometer-sized material modifications …

Durable shape sensor based on FBG array inscribed in polyimide-coated multicore optical fiber

K Bronnikov, A Wolf, S Yakushin, A Dostovalov… - Optics …, 2019 - opg.optica.org
The paper presents a novel three-dimensional quasi-continuous shape sensor based on an
FBG array inscribed by femtosecond laser pulses into a 7-core optical fiber with a polyimide …

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 …

Femtosecond laser filaments for rapid and flexible writing of fiber Bragg grating

E Ertorer, M Haque, J Li, PR Herman - Optics Express, 2018 - opg.optica.org
A new beam delivery method is introduced for controlling filament formation in optical fiber
that enables point-by-point writing of 1^ st order fiber Bragg gratings (FBGs) with single …

Single-mode helical Bragg grating waveguide created in a multimode coreless fiber by femtosecond laser direct writing

J He, J He, X Xu, B Du, B Xu, C Liao, Z Bai… - Photonics …, 2021 - opg.optica.org
We demonstrate the fabrication of single-mode helical Bragg grating waveguides (HBGWs)
in a multimode coreless fiber by using a femtosecond laser direct writing technique. This …

[图书][B] Ultrafast laser processing: from micro-to nanoscale

K Sugioka, Y Cheng - 2013 - books.google.com
Over the past few decades, the rapid development of ultrafast lasers, such as femtosecond
lasers and picosecond lasers, has opened up new avenues for material processing due to …