| 1.5 kW Incoherent Beam Combining of Four Fiber Lasers Using Adaptive Fiber-Optics Collimators | |
Geng, Chao1; Zhao, Baoyin2 ; Zhang, Entao2; Luo, Wen1; Tan, Yi1; Zhu, Yonggang2; Yang, Hening2; Mu, Jinbo1; Li, Xinyang1; Duan, Kailiang2; Zhao, Wei2
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| 作者部门 | 瞬态光学与光子技术国家重点实验室 |
| 2013-07-01 | |
| 发表期刊 | IEEE PHOTONICS TECHNOLOGY LETTERS
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| ISSN | 0030-3992 |
| 卷号 | 25期号:13页码:1286-1289 |
| 摘要 | We demonstrate the incoherent beam combining (BC) of four high-power single-mode fiber lasers. Adaptive fiber-optics collimators (AFOC) of 0.5 kW-level are developed to correct the tip/tilt-type phase errors among beamlets. The maximum deflection angle of the AFOC is about 0.29 mrad. A stochastic parallel gradient descent algorithm is employed as the tip/tilt control strategy. The tip/tilt control makes four separate laser beams overlap with each other in the far-field, and the average of normalized power-in-bucket increases from 0.171 in open loop to 0.798 in closed loop when 1.5-kW total output power is achieved. The precise tracking ability and control accuracy of this BC system are investigated. Experimental results expose that thermal-blooming effect disturbs BC seriously when the total output power is up to kW-level, which could be mitigated by inducing air flow near the laser output. |
| 文章类型 | Article |
| 关键词 | High-power Fiber Laser Beam Combining Tip/tilt Control Adaptive Fiber-optics Collimator Thermal-blooming |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| DOI | 10.1109/LPT.2013.2263123 |
| 收录类别 | SCI ; EI |
| 关键词[WOS] | HIGH-POWER ; AMPLIFIER ARRAY ; COMBINATION |
| 语种 | 英语 |
| WOS研究方向 | Engineering ; Optics ; Physics |
| WOS类目 | Engineering, Electrical & Electronic ; Optics ; Physics, Applied |
| WOS记录号 | WOS:000322372900016 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/21810 |
| 专题 | 瞬态光学研究室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China 2.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China |
| 推荐引用方式 GB/T 7714 | Geng, Chao,Zhao, Baoyin,Zhang, Entao,et al. 1.5 kW Incoherent Beam Combining of Four Fiber Lasers Using Adaptive Fiber-Optics Collimators[J]. IEEE PHOTONICS TECHNOLOGY LETTERS,2013,25(13):1286-1289. |
| APA | Geng, Chao.,Zhao, Baoyin.,Zhang, Entao.,Luo, Wen.,Tan, Yi.,...&Zhao, Wei.(2013).1.5 kW Incoherent Beam Combining of Four Fiber Lasers Using Adaptive Fiber-Optics Collimators.IEEE PHOTONICS TECHNOLOGY LETTERS,25(13),1286-1289. |
| MLA | Geng, Chao,et al."1.5 kW Incoherent Beam Combining of Four Fiber Lasers Using Adaptive Fiber-Optics Collimators".IEEE PHOTONICS TECHNOLOGY LETTERS 25.13(2013):1286-1289. |
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| 1.5 kW Incoherent Be（1404KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY | 请求全文 | |
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