Kamyar Rashidi, Davood Fathi, Javad Maleki, Hussein Taleb, Seyed Mohammad Mirjalili et Derek Abbott
Article de revue (2023)
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Libre accès au plein texte de ce document Version officielle de l'éditeur Conditions d'utilisation: Creative Commons: Attribution (CC BY) Télécharger (4MB) |
Abstract
In laser science and industry, considerable effort is directed toward designing fibers for fiber laser and fiber amplifier applications, each of which offers a particular advantage over the others. Evanescently coupled multicore fibers, however, have been studied less extensively due to the relatively small mode area in the single-mode regime. Here, by proposing a new structure with stress-applying parts in a 37-core fiber and optimizing this structure through a comprehensive framework, we present 21 solutions characterized by large-mode-area and high beam quality in the single-mode, single-polarization regime. Different fiber designs are optimal for different output parameters. In one design, the mode area can significantly increase to above 880 μm², which is comparable with that of photonic-crystal fibers. Moreover, besides the single-mode operation, the beam quality factor (M² factor) of the fundamental mode is considered an output parameter in the bent state and is improved up to 1.05 in another design. A comprehensive tolerance analysis is then performed to assess the performance of the designs under deviations from normal conditions. Moreover, in spite of the shifts in the loss of modes, the proposed high beam quality LMA fibers maintain single-polarization, single-mode operation across a wide range of core pitches, bending orientation angles, and bending radius deviations. Our results highlight the potential of multicore fibers for the efficient operation of fiber lasers and amplifiers.
Mots clés
nulticore fiber; large-mode-area; single-mode; single-polarization; design; quality factor
Sujet(s): |
2500 Génie électrique et électronique > 2500 Génie électrique et électronique 3100 Physique > 3100 Physique |
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Département: | Département de génie physique |
URL de PolyPublie: | https://publications.polymtl.ca/56695/ |
Titre de la revue: | Micromachines (vol. 14, no 10) |
Maison d'édition: | Multidisciplinary Digital Publishing Institute |
DOI: | 10.3390/mi14101901 |
URL officielle: | https://doi.org/10.3390/mi14101901 |
Date du dépôt: | 23 janv. 2024 17:39 |
Dernière modification: | 05 avr. 2024 15:21 |
Citer en APA 7: | Rashidi, K., Fathi, D., Maleki, J., Taleb, H., Mirjalili, S. M., & Abbott, D. (2023). Design of single-mode single-polarization large-mode-area multicore fibers. Micromachines, 14(10), 1901 (17 pages). https://doi.org/10.3390/mi14101901 |
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