Photonic Crystal Fibers: Design, Fabrication and Applications

A special issue of Photonics (ISSN 2304-6732).

Deadline for manuscript submissions: closed (31 May 2022) | Viewed by 5122

Special Issue Editor


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Guest Editor
IMS Laboratory, University of Bordeaux, Bat. A31, 351, Rue de la Libération, 33400 Talence, France
Interests: hollow and solid core photonic crystal fibers; terahertz; ultra-short lasers systems; post-compression; nonlinear photonics; diagnostics; laser-matter interaction; parametric amplification

Special Issue Information

Dear Colleagues,

The purpose of this Special Issue is to highlight active research dedicated to “Photonic Crystal Fibers” from their design and fabrication to their implementation in emerging applications. Indeed, the design of PCF is closely related to targeted applications by choosing appropriate materials and geometry. This photonic technology is still opening the door to new applications including the transmission of a specific spectral range (from the XUV to the mid-infrared and Terahertz) for a direct use of the fiber (passive configurations) but also for the conversion of light waves from a nonlinear or a laser-emission process (active configurations).

Fibers technical topics include but are not limited to the following:

- Design and fabrication fibers;

- Laser developments, post-compression, amplifier with fibers;

- Spectroscopy, imaging, endoscopy;

- Linear and nonlinear photonics.

These key fiber application topics will be discussed in both invited and contributed talks, providing comprehensive overviews of the current status and future directions as well as original results on research and recent developments in fibers and applications.

Dr. Coralie Fourcade-Dutin
Guest Editor

Manuscript Submission Information

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Published Papers (2 papers)

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Research

15 pages, 9080 KiB  
Article
Design of PCF Supporting 86 OAM Modes with High Mode Quality and Low Nonlinear Coefficient
by Yang Yu, Yudong Lian, Qi Hu, Luyang Xie, Jie Ding, Yulei Wang and Zhiwei Lu
Photonics 2022, 9(4), 266; https://doi.org/10.3390/photonics9040266 - 18 Apr 2022
Cited by 9 | Viewed by 2098
Abstract
A unique photonic crystal fiber with square and circular air holes (SC-PCF) is designed in this research. Three layers of circular air holes and two levels of square air holes make up the fiber cladding. The finite element approach is used to simulate [...] Read more.
A unique photonic crystal fiber with square and circular air holes (SC-PCF) is designed in this research. Three layers of circular air holes and two levels of square air holes make up the fiber cladding. The finite element approach is used to simulate the fiber construction, and numerical calculations are used to examine the transmission properties in the S+C+L band. The results reveal that the SC-PCF can sustain 86 Orbital Angular Momentum (OAM) modes in the wavelength range of 1400 nm to 1700 nm (300 nm), with an effective refractive index difference (ERID) of 5.88 × 10−3 between them, thus avoiding mode coupling. The mode purity of all modes is greater than 96% at 1550 nm, and the lowest dispersion and dispersion change are 4.939 ps/nm/km and 0.956 ps/nm/km, respectively. The confinement loss (CL) of all modes is lower than 10−9 dB/m, and the nonlinear coefficient (NC) is lower than 1.5 W−1·km−1 in the whole band. The proposed SC-PCF has important value in long-distance and large-capacity communication systems. Full article
(This article belongs to the Special Issue Photonic Crystal Fibers: Design, Fabrication and Applications)
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15 pages, 7389 KiB  
Article
Impact of Mode-Area Dispersion on Nonlinear Pulse Propagation in Gas-Filled Anti-Resonant Hollow-Core Fiber
by Ying Wan, Md Imran Hasan and Wonkeun Chang
Photonics 2022, 9(1), 25; https://doi.org/10.3390/photonics9010025 - 1 Jan 2022
Viewed by 1950
Abstract
We numerically investigate the effect of mode-area dispersion in a tubular-type anti-resonant hollow-core fiber by using a modified generalized nonlinear Schrödinger equation that takes into account the wavelength-dependent mode area in its nonlinear term. The pulse evolution dynamics with and without the effect [...] Read more.
We numerically investigate the effect of mode-area dispersion in a tubular-type anti-resonant hollow-core fiber by using a modified generalized nonlinear Schrödinger equation that takes into account the wavelength-dependent mode area in its nonlinear term. The pulse evolution dynamics with and without the effect of mode-area dispersion are compared and analyzed. We show that strong dispersion of the mode area in the proximity of the cladding wall thickness-induced resonances has a significant impact on the soliton pulse propagation, resulting in considerable changes in the conversion efficiencies in nonlinear frequency mixing processes. The differences become more prominent when the pump has higher energy and is nearer to a resonance. Hence, the mode-area dispersion must be accounted for when modeling such a case. Full article
(This article belongs to the Special Issue Photonic Crystal Fibers: Design, Fabrication and Applications)
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