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Fibers, Volume 11, Issue 11

2023 November - 10 articles

Cover Story: Ytterbium-doped silica fibres form the foundation of modern high-power lasers and amplifiers. Achieving high concentrations of ytterbium (Yb) ions is crucial, yet hindered by performance issues related to clustering and quenching effects. In this study, powder-in-tube technology is employed to realize a large-core silica fibre with exceptionally high levels of aluminium (Al) co-doping, aimed at increasing Yb-ion solubility in the glass matrix. Concentrations of 60 at.% Al and 1 at.% Yb are demonstrated, limited only by diffusion effects during fibre drawing. The fibre exhibits a fluorescence lifetime of 1.2 ms, indicating effective suppression of clustering and quenching effects. These findings are anticipated to provide valuable insights into advancing power scaling in fibre amplifier technology. View this paper
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Articles (10)

  • Article
  • Open Access
26 Citations
5,098 Views
19 Pages

14 November 2023

This study evaluates the performance of Reinforced Concrete (RC) beams enhanced in shear using Engineered Cementitious Composites (ECCs) and Carbon Fiber-Reinforced Polymers (CFRPs). The experimental study encompasses fifteen RC beams. This set inclu...

  • Article
  • Open Access
1 Citations
2,866 Views
12 Pages

Field Study of Activity of Antimicrobial Polypropylene Textiles

  • Alena Balogová,
  • Bibiána Bizubová,
  • Michal Kleščík and
  • Tomáš Zatroch

10 November 2023

In this work, an in situ study is presented of the impact of textile materials used in healthcare facilities on microbial colonization of textile surfaces. The available literature describes antimicrobial active textiles and their effectiveness in la...

  • Article
  • Open Access
1 Citations
6,258 Views
21 Pages

Novel Fiber-Based Padding Materials for Football Helmets

  • Jared J. Correia,
  • Vijaya Chalivendra and
  • Yong Kim

8 November 2023

An experimental study is performed to determine the head mechanics of American football helmets equipped with novel fiber energy absorbing material (FEAM). FEAM-based padding materials have substrates of textile fabrics and foam made with nylon fiber...

  • Article
  • Open Access
3 Citations
2,617 Views
10 Pages

Multimode Ytterbium–Aluminosilicate Core Optical Fibre for Amplification and Laser Applications

  • Dunia Blaser,
  • Pascal Hänzi,
  • Sönke Pilz,
  • Alexander Heidt and
  • Valerio Romano

8 November 2023

Rare-earth-doped optical fibres are widely used in lasers and amplifiers. The incorporation of ytterbium and aluminium oxide in a high doping concentration has led to the fabrication of a multi-mode (MM) optical fibre. Within this research, the desig...

  • Article
  • Open Access
10 Citations
4,741 Views
17 Pages

3 November 2023

In the era of environmental concerns, many attempts were proposed to optimize energy efficiency for buildings and consequently reduce their carbon footprint. As a sustainable approach, it is a promising solution to incorporate phase change materials...

  • Review
  • Open Access
19 Citations
8,243 Views
25 Pages

Characterization Specifications for FRP Pultruded Materials: From Constituents to Pultruded Profiles

  • Ehsan Harati Khalilabad,
  • Alvaro Ruiz Emparanza,
  • Francisco De Caso,
  • Hossein Roghani,
  • Nima Khodadadi and
  • Antonio Nanni

2 November 2023

Pultruded FRP composites have emerged as a promising alternative to traditional materials like concrete, steel, and timber, especially in corrosive environmental conditions. However, the unique properties of these composites necessitate careful consi...

(This article belongs to the Special Issue Use of Fibers in Organic and Inorganic Composite Solutions for Structural Strengthening: Advances, Applications, and Challenges)
  • Article
  • Open Access
45 Citations
3,950 Views
15 Pages

2 November 2023

This study explores the effect of alkali treatment at ambient (25 °C) and elevated temperatures (100 °C) on the physicochemical, structural, morphological, and thermal properties of Calamus tenuis cane fibers (CTCFs) for the first time. Our p...

  • Article
  • Open Access
2 Citations
2,995 Views
21 Pages

26 October 2023

Chitosan coatings could effectively increase the biostability and biocompatibility of biomaterials while maintaining their structural integrity. In this study, electrospun fibrous polyhydroxybutyrate (PHB) membranes were pre-treated with potassium hy...

  • Article
  • Open Access
8 Citations
5,287 Views
14 Pages

Next-Generation Cellulosic Filaments from Hemp Pulp via Dry-Jet Wet Spinning Using HighPerCell® Technology

  • Antje Ota,
  • Marc Philip Vocht,
  • Ronald Beyer,
  • Anne Reboux,
  • Charles Reboux and
  • Frank Hermanutz

26 October 2023

Fiber demand of cellulosic fibers is rapidly increasing; however, these fibers are mainly based on the use of wood pulp (WP), which often have long transport times and, consequently, a high CO2 footprint. So, alternative pulps based on non-wood, annu...

(This article belongs to the Special Issue Fibers 10th Anniversary: Past, Present, and Future)
  • Article
  • Open Access
2,152 Views
16 Pages

24 October 2023

M-type optical fibers in which a core is surrounded by a thin ring layer with a higher refractive index have attracted increasing attention in recent years. One of their advantageous features is the ability to operate a non-fundamental LP02 mode poss...

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Fibers - ISSN 2079-6439