Stable and Efficient Coupling of High-Power Continuous-Wave Laser With Uncooled Anti-Resonant Hollow-Core Fibers With End Caps

Hollow-core fibers provide an ideal environment for the interaction of a laser and gases; however, achieving stable and efficient coupling of a high-power laser is one of the key problems to be solved. Here, we study stable and efficient coupling of a high-power continuous-wave fiber laser with anti...

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Main Authors: Yulong Cui, Xinyu Ye, Jing Shi, Wei Huang, Zhiyue Zhou, Meng Wang, Zilun Chen, Zefeng Wang
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Photonics Journal
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9664250/
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author Yulong Cui
Xinyu Ye
Jing Shi
Wei Huang
Zhiyue Zhou
Meng Wang
Zilun Chen
Zefeng Wang
author_facet Yulong Cui
Xinyu Ye
Jing Shi
Wei Huang
Zhiyue Zhou
Meng Wang
Zilun Chen
Zefeng Wang
author_sort Yulong Cui
collection DOAJ
description Hollow-core fibers provide an ideal environment for the interaction of a laser and gases; however, achieving stable and efficient coupling of a high-power laser is one of the key problems to be solved. Here, we study stable and efficient coupling of a high-power continuous-wave fiber laser with anti-resonant hollow-core fibers spliced with end caps. By optimizing the splicing process, a maximum laser power of 460 W was injected and 356.5 W was outputted under uncooled conditions, realizing a total transmission efficiency of approximately 77.5%. A test of more than 1 h showed the stability of this a coupling method. A few other important characteristics, such as the Fresnel reflection of the end caps and the influence of the end caps on the transmission beam quality, were measured and examined. This study opens new opportunities for stable and highly efficient coupling of high-power lasers with hollow-core fibers, which is significant for their applications in many other fields besides high-power fiber gas lasers, such as high-power laser delivery and liquid lasers in hollow-core fibers.
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spelling doaj.art-e06dd5b6fe324b28b7c18385a01cdef32022-12-22T03:34:55ZengIEEEIEEE Photonics Journal1943-06552022-01-011411610.1109/JPHOT.2021.31379349664250Stable and Efficient Coupling of High-Power Continuous-Wave Laser With Uncooled Anti-Resonant Hollow-Core Fibers With End CapsYulong Cui0Xinyu Ye1Jing Shi2Wei Huang3Zhiyue Zhou4Meng Wang5Zilun Chen6Zefeng Wang7https://orcid.org/0000-0002-5044-5150College of Advanced Interdisciplinary Studies, National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, State Key Laboratory of Pulsed Power Laser Technology, Changsha, ChinaHollow-core fibers provide an ideal environment for the interaction of a laser and gases; however, achieving stable and efficient coupling of a high-power laser is one of the key problems to be solved. Here, we study stable and efficient coupling of a high-power continuous-wave fiber laser with anti-resonant hollow-core fibers spliced with end caps. By optimizing the splicing process, a maximum laser power of 460 W was injected and 356.5 W was outputted under uncooled conditions, realizing a total transmission efficiency of approximately 77.5%. A test of more than 1 h showed the stability of this a coupling method. A few other important characteristics, such as the Fresnel reflection of the end caps and the influence of the end caps on the transmission beam quality, were measured and examined. This study opens new opportunities for stable and highly efficient coupling of high-power lasers with hollow-core fibers, which is significant for their applications in many other fields besides high-power fiber gas lasers, such as high-power laser delivery and liquid lasers in hollow-core fibers.https://ieeexplore.ieee.org/document/9664250/Hollow-core fibersend capshigh power transmissioncoupling methods
spellingShingle Yulong Cui
Xinyu Ye
Jing Shi
Wei Huang
Zhiyue Zhou
Meng Wang
Zilun Chen
Zefeng Wang
Stable and Efficient Coupling of High-Power Continuous-Wave Laser With Uncooled Anti-Resonant Hollow-Core Fibers With End Caps
IEEE Photonics Journal
Hollow-core fibers
end caps
high power transmission
coupling methods
title Stable and Efficient Coupling of High-Power Continuous-Wave Laser With Uncooled Anti-Resonant Hollow-Core Fibers With End Caps
title_full Stable and Efficient Coupling of High-Power Continuous-Wave Laser With Uncooled Anti-Resonant Hollow-Core Fibers With End Caps
title_fullStr Stable and Efficient Coupling of High-Power Continuous-Wave Laser With Uncooled Anti-Resonant Hollow-Core Fibers With End Caps
title_full_unstemmed Stable and Efficient Coupling of High-Power Continuous-Wave Laser With Uncooled Anti-Resonant Hollow-Core Fibers With End Caps
title_short Stable and Efficient Coupling of High-Power Continuous-Wave Laser With Uncooled Anti-Resonant Hollow-Core Fibers With End Caps
title_sort stable and efficient coupling of high power continuous wave laser with uncooled anti resonant hollow core fibers with end caps
topic Hollow-core fibers
end caps
high power transmission
coupling methods
url https://ieeexplore.ieee.org/document/9664250/
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AT mengwang stableandefficientcouplingofhighpowercontinuouswavelaserwithuncooledantiresonanthollowcorefiberswithendcaps
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