Directly Emitting a High-Power Phase-Locked Laser Array by an Internal Phase Sensing System
In this article, we experimentally presented a compact, packaged high-power coherent fiber laser array based on an internal phase sensing technique. In the experiment, a laser array with three beamlets was utilized for experimental presentation. The power output of each laser channel was increased t...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10384675/ |
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| author | Jinhu Long Shuyue He Qi Chang Zhiqiang Gao Yanxing Ma Rongtao Su Pengfei Ma Pu Zhou |
| author_facet | Jinhu Long Shuyue He Qi Chang Zhiqiang Gao Yanxing Ma Rongtao Su Pengfei Ma Pu Zhou |
| author_sort | Jinhu Long |
| collection | DOAJ |
| description | In this article, we experimentally presented a compact, packaged high-power coherent fiber laser array based on an internal phase sensing technique. In the experiment, a laser array with three beamlets was utilized for experimental presentation. The power output of each laser channel was increased to exceed 500 W. Owing to the exceptional system design and effective thermal management, the internal phase sensing system maintained a remarkable level of performance. When the dynamic phase noise was compensated effectively by the stochastic parallel gradient descent (SPGD) algorithm, the high-power laser array was combined with phase-locked synchronization and directly emitted to the free space. When the output combined power was increased from 3 W to 1.5 kW, the phase deviation remained to be less than λ/27. In addition, the phase control error, element expansion, and further power scaling were fully discussed. This work may offer a practical reference for designing the compact, high-power fiber laser array. |
| format | Article |
| id | doaj-art-d49cf4b70fa54f329fd824fc2fb57de3 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-d49cf4b70fa54f329fd824fc2fb57de32025-08-20T03:33:11ZengIEEEIEEE Photonics Journal1943-06552024-01-011611610.1109/JPHOT.2024.335173410384675Directly Emitting a High-Power Phase-Locked Laser Array by an Internal Phase Sensing SystemJinhu Long0https://orcid.org/0000-0002-3864-0519Shuyue He1Qi Chang2Zhiqiang Gao3Yanxing Ma4Rongtao Su5https://orcid.org/0000-0003-1555-5263Pengfei Ma6https://orcid.org/0000-0002-6146-7419Pu Zhou7College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaCollege of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, ChinaIn this article, we experimentally presented a compact, packaged high-power coherent fiber laser array based on an internal phase sensing technique. In the experiment, a laser array with three beamlets was utilized for experimental presentation. The power output of each laser channel was increased to exceed 500 W. Owing to the exceptional system design and effective thermal management, the internal phase sensing system maintained a remarkable level of performance. When the dynamic phase noise was compensated effectively by the stochastic parallel gradient descent (SPGD) algorithm, the high-power laser array was combined with phase-locked synchronization and directly emitted to the free space. When the output combined power was increased from 3 W to 1.5 kW, the phase deviation remained to be less than λ/27. In addition, the phase control error, element expansion, and further power scaling were fully discussed. This work may offer a practical reference for designing the compact, high-power fiber laser array.https://ieeexplore.ieee.org/document/10384675/Fiber laserlaser arraycoherent beam combiningphase controlinternal phase sensing |
| spellingShingle | Jinhu Long Shuyue He Qi Chang Zhiqiang Gao Yanxing Ma Rongtao Su Pengfei Ma Pu Zhou Directly Emitting a High-Power Phase-Locked Laser Array by an Internal Phase Sensing System IEEE Photonics Journal Fiber laser laser array coherent beam combining phase control internal phase sensing |
| title | Directly Emitting a High-Power Phase-Locked Laser Array by an Internal Phase Sensing System |
| title_full | Directly Emitting a High-Power Phase-Locked Laser Array by an Internal Phase Sensing System |
| title_fullStr | Directly Emitting a High-Power Phase-Locked Laser Array by an Internal Phase Sensing System |
| title_full_unstemmed | Directly Emitting a High-Power Phase-Locked Laser Array by an Internal Phase Sensing System |
| title_short | Directly Emitting a High-Power Phase-Locked Laser Array by an Internal Phase Sensing System |
| title_sort | directly emitting a high power phase locked laser array by an internal phase sensing system |
| topic | Fiber laser laser array coherent beam combining phase control internal phase sensing |
| url | https://ieeexplore.ieee.org/document/10384675/ |
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