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 …

Point-by-point written fiber-Bragg gratings and their application in complex grating designs

GD Marshall, RJ Williams, N Jovanovic, MJ Steel… - Optics express, 2010 - opg.optica.org
The point-by-point technique of fabricating fibre-Bragg gratings using an ultrafast laser
enables complete control of the position of each index modification that comprises the …

Femtosecond pulse written fiber gratings: a new avenue to integrated fiber technology

J Thomas, C Voigtlaender, RG Becker… - Laser & Photonics …, 2012 - Wiley Online Library
The use of ultrashort laser pulses for fiber grating inscription has many advantages in
comparison to continuous wave and long pulse lasers. The most important one is that it …

Narrow-linewidth Er-doped fiber lasers with random distributed feedback provided by artificial Rayleigh scattering

MI Skvortsov, AA Wolf, AV Dostovalov… - Journal of Lightwave …, 2022 - opg.optica.org
A compact random fiber laser based on a short artificial Rayleigh reflector and heavily-
doped Er fibers (custom-made and commercial as a reference) has been proposed …

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 …

Grating inscription into fluoride fibers: a review

A Fuerbach, G Bharathan, M Ams - IEEE Photonics Journal, 2019 - ieeexplore.ieee.org
First demonstrated over four decades ago, fiber gratings, and in particular fiber Bragg
gratings (FBGs), have become indispensable and ubiquitous components within fiber laser …

Nanoscale morphology and thermal properties of low insertion loss fiber Bragg gratings produced using the phase mask technique and a single femtosecond laser …

C Hnatovsky, KD Silva, N Abdukerim, RB Walker… - Optics …, 2022 - opg.optica.org
Fiber Bragg gratings with a very low insertion loss are inscribed using the phase mask
technique and a single infrared (800 nm) femtosecond laser pulse. The morphology of the …

Arrays of fiber Bragg gratings selectively inscribed in different cores of 7-core spun optical fiber by IR femtosecond laser pulses

A Wolf, A Dostovalov, K Bronnikov, S Babin - Optics Express, 2019 - opg.optica.org
In this paper, we present a new method of point-by-point femtosecond inscription of fiber
Bragg gratings (FBG) arrays of different configurations in a 7-core spun optical fiber. The …

Femtosecond direct-writing of low-loss fiber Bragg gratings using a continuous core-scanning technique

RJ Williams, RG Krämer, S Nolte, MJ Withford - Optics letters, 2013 - opg.optica.org
We report the inscription of low-loss fiber Bragg gratings using focused femtosecond (fs)
pulses and a continuous core-scanning technique. This direct-write technique produces …

Femtosecond laser inscribed parallel long-period fiber gratings for multi-channel core mode conversion

C Jiang, K Zhou, B Sun, Z Wang, Y Wan, Y Ma… - Optics Letters, 2022 - opg.optica.org
We propose and demonstrate the inscription of parallel long-period gratings (LPGs) in a few-
mode fiber (FMF) using femtosecond lasers. Mode conversion from the fundamental (LP_01) …