Research and Applications of Optical Fibers

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optoelectronics and Optical Materials".

Deadline for manuscript submissions: closed (30 September 2025) | Viewed by 1642

Special Issue Editor

Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS), Shanghai 201800, China
Interests: fiber laser; laser stability; fiber grating; spectrum

Special Issue Information

Dear Colleagues,

Optical fibers are defined as lightweight, flexible mechanisms with a transparent core and cladding layer, used for guiding light signals over long distances with minimal loss in quality.

Since its first invention by K. C. Kao in the 1960s, it is widely used in many areas, including optical communication, optical sensing, fiber laser, nonlinear optics, etc. Recently, a substantial amount of research has been conducted in the field of optical fibers and their application, such as passive and active fiber manufacturing, fiber transmittance, fiber laser amplification, etc. As a scientific basic material, the research and development of optical fibers and their application involve multidisciplinary work, encompassing a wide range of disciplines such as optics, materials science, electronics, etc.

This Special Issue aims to publish selected contributions on the advances in the research and applications of optical fibers, which may include, but not be limited to, the following topics:

  • Active fiber;
  • Single-mode fiber;
  • Multimode fiber;
  • Optical fiber device;
  • Optical fiber communication;
  • Optical fiber sensing;
  • Optical fiber transmittance;
  • Laser amplification;
  • Photonic crystal fiber;
  • Nonlinear fiber and application.

Dr. Kang Ying
Guest Editor

Manuscript Submission Information

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Keywords

  • active fiber
  • single-mode fiber
  • multimode fiber
  • optical fiber device
  • optical fiber communication
  • optical fiber sensing
  • optical fiber transmittance
  • laser amplification
  • photonic crystal fiber
  • nonlinear fiber and application

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Published Papers (2 papers)

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Research

11 pages, 1842 KB  
Article
Bidirectional Wavelength Tuning in an Optofluidic Fiber Microcavity Laser Directed by Rhodamine 6G and Co-Dopants
by Huimin Shi, Chao Wang, Lixia Wang, Limian Ren, Junjun Wu, Xinyu Men and Pan Wang
Photonics 2025, 12(12), 1147; https://doi.org/10.3390/photonics12121147 - 21 Nov 2025
Viewed by 318
Abstract
Achieving controllable wavelength tuning in optofluidic whispering gallery mode microcavity lasers is crucial for high-throughput, multi-sample, multiplexed biochemical sensing and multifunctional integrated photonic devices. This paper develops a bidirectionally wavelength-tunable optofluidic fiber whispering gallery mode microcavity laser driven by Rhodamine 6G co-doped with [...] Read more.
Achieving controllable wavelength tuning in optofluidic whispering gallery mode microcavity lasers is crucial for high-throughput, multi-sample, multiplexed biochemical sensing and multifunctional integrated photonic devices. This paper develops a bidirectionally wavelength-tunable optofluidic fiber whispering gallery mode microcavity laser driven by Rhodamine 6G co-doped with different acceptor dyes. Experimentally, a thin-walled silica ring inside a hollow-core anti-resonant fiber served as the optical microcavity, with a fixed 2.5 mM Rhodamine 6G co-doped with other dyes as the gain medium. The results revealed that when co-doped with Rhodamine B or Cy3, the single-longitudinal-mode laser emission wavelength exhibited a red shift with increasing co-dopant concentration. Conversely, when co-doped with Cy5, the laser output wavelength showed a distinct blue shift. This unique bidirectional tuning characteristic originates from the different fluorescence resonance energy transfer efficiencies between the co-dopants and Rhodamine 6G, and their competitive modulation of the system’s effective gain spectrum. The study offers a novel and flexible strategy for achieving wide-range, controllable wavelength tuning on a single laser platform, with significant potential for applications in biochemical sensing and multifunctional integrated photonic devices. Full article
(This article belongs to the Special Issue Research and Applications of Optical Fibers)
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15 pages, 2814 KB  
Article
Triple-Clad Fiber Combiner for Holmium-Doped Fiber Lasers Clad-Pumping
by Nicolas Dalloz, Stefano Bigotta, Thierry Ibach, Christophe Louot, Thierry Robin and Anne Hildenbrand-Dhollande
Photonics 2025, 12(7), 659; https://doi.org/10.3390/photonics12070659 - 30 Jun 2025
Viewed by 994
Abstract
The development of a high-power 7 × 1 triple-clad fiber combiner aimed at resonantly clad-pump holmium-doped fiber lasers is presented. Thanks to the implementation in the combiner of a low refractive index glass capillary, we show that the developed combiner is compatible with [...] Read more.
The development of a high-power 7 × 1 triple-clad fiber combiner aimed at resonantly clad-pump holmium-doped fiber lasers is presented. Thanks to the implementation in the combiner of a low refractive index glass capillary, we show that the developed combiner is compatible with power scaling. Due to the hexagonal arrangement of its seven single-mode input fibers, the presented combiner can also be used in a 6 + 1 × 1 configuration. This characteristic of the fiber component allows for holmium-doped fiber lasers to be studied and developed with both single-oscillator and master-oscillator power amplifier architectures. Full article
(This article belongs to the Special Issue Research and Applications of Optical Fibers)
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