Rare-earth-doped optical fibers are one of the most promising solid-state lasers. In these fiber lasers, a cladding-pumping scheme using double-clad fibers is utilized to increase the overall conversion efficiency of pumping light. To maintain acceptable beam quality, the low-numerical aperture large-mode-area fibers is effective for the double-clad fibers because the effects of stimulated Raman scattering can be reduced via the corresponding reduction in the power density in the large fiber core. For the large-mode-area double-clad fibers, fiber fuse propagation was investigated theoretically by the explicit finite-difference method using the thermochemical SiOx production model. In the calculation, we assumed the fiber to be in an atmosphere and that part (40 μm in length) of the core was heated to a temperature of 2,923 K. The threshold power for the double-clad fiber with the core radius of 10 μm was 1.6 W at 1.080 μm and it was close to the experimental value. The power dependence of the velocity of fiber fuse propagation was calculated for the double-clad fibers with the core radius of 10 and 15 μm. The calculated velocities were in fair agreement with the experimental values observed in the input power range from 1 kW to 3.5 kW at 1.080 μm.
| Published in | Journal of Electrical and Electronic Engineering (Volume 10, Issue 1) |
| DOI | 10.11648/j.jeee.20221001.14 |
| Page(s) | 31-38 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2022. Published by Science Publishing Group |
Fiber Laser, Fiber Fuse Phenomenon, Double-Clad Fiber, Finite-Difference Technique
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APA Style
Yoshito Shuto. (2022). Fiber Fuse Simulation in Double-Clad Fibers for High-Power Fiber Lasers. Journal of Electrical and Electronic Engineering, 10(1), 31-38. https://doi.org/10.11648/j.jeee.20221001.14
ACS Style
Yoshito Shuto. Fiber Fuse Simulation in Double-Clad Fibers for High-Power Fiber Lasers. J. Electr. Electron. Eng. 2022, 10(1), 31-38. doi: 10.11648/j.jeee.20221001.14
AMA Style
Yoshito Shuto. Fiber Fuse Simulation in Double-Clad Fibers for High-Power Fiber Lasers. J Electr Electron Eng. 2022;10(1):31-38. doi: 10.11648/j.jeee.20221001.14
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Download@article{10.11648/j.jeee.20221001.14,
author = {Yoshito Shuto},
title = {Fiber Fuse Simulation in Double-Clad Fibers for High-Power Fiber Lasers},
journal = {Journal of Electrical and Electronic Engineering},
volume = {10},
number = {1},
pages = {31-38},
doi = {10.11648/j.jeee.20221001.14},
url = {https://doi.org/10.11648/j.jeee.20221001.14},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeee.20221001.14},
abstract = {Rare-earth-doped optical fibers are one of the most promising solid-state lasers. In these fiber lasers, a cladding-pumping scheme using double-clad fibers is utilized to increase the overall conversion efficiency of pumping light. To maintain acceptable beam quality, the low-numerical aperture large-mode-area fibers is effective for the double-clad fibers because the effects of stimulated Raman scattering can be reduced via the corresponding reduction in the power density in the large fiber core. For the large-mode-area double-clad fibers, fiber fuse propagation was investigated theoretically by the explicit finite-difference method using the thermochemical SiOx production model. In the calculation, we assumed the fiber to be in an atmosphere and that part (40 μm in length) of the core was heated to a temperature of 2,923 K. The threshold power for the double-clad fiber with the core radius of 10 μm was 1.6 W at 1.080 μm and it was close to the experimental value. The power dependence of the velocity of fiber fuse propagation was calculated for the double-clad fibers with the core radius of 10 and 15 μm. The calculated velocities were in fair agreement with the experimental values observed in the input power range from 1 kW to 3.5 kW at 1.080 μm.},
year = {2022}
}
TY - JOUR T1 - Fiber Fuse Simulation in Double-Clad Fibers for High-Power Fiber Lasers AU - Yoshito Shuto Y1 - 2022/02/16 PY - 2022 N1 - https://doi.org/10.11648/j.jeee.20221001.14 DO - 10.11648/j.jeee.20221001.14 T2 - Journal of Electrical and Electronic Engineering JF - Journal of Electrical and Electronic Engineering JO - Journal of Electrical and Electronic Engineering SP - 31 EP - 38 PB - Science Publishing Group SN - 2329-1605 UR - https://doi.org/10.11648/j.jeee.20221001.14 AB - Rare-earth-doped optical fibers are one of the most promising solid-state lasers. In these fiber lasers, a cladding-pumping scheme using double-clad fibers is utilized to increase the overall conversion efficiency of pumping light. To maintain acceptable beam quality, the low-numerical aperture large-mode-area fibers is effective for the double-clad fibers because the effects of stimulated Raman scattering can be reduced via the corresponding reduction in the power density in the large fiber core. For the large-mode-area double-clad fibers, fiber fuse propagation was investigated theoretically by the explicit finite-difference method using the thermochemical SiOx production model. In the calculation, we assumed the fiber to be in an atmosphere and that part (40 μm in length) of the core was heated to a temperature of 2,923 K. The threshold power for the double-clad fiber with the core radius of 10 μm was 1.6 W at 1.080 μm and it was close to the experimental value. The power dependence of the velocity of fiber fuse propagation was calculated for the double-clad fibers with the core radius of 10 and 15 μm. The calculated velocities were in fair agreement with the experimental values observed in the input power range from 1 kW to 3.5 kW at 1.080 μm. VL - 10 IS - 1 ER -
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