{"defaultlang":"zh","titlegroup":{"articletitle":[{"lang":"zh","data":[{"name":"text","data":"激光加工用5 kW光纤耦合半导体激光器"}]},{"lang":"en","data":[{"name":"text","data":"5 kW fiber coupling diode laser for laser processing"}]}]},"contribgroup":{"author":[{"name":[],"stringName":[{"lang":"zh","surname":"刘友强","prefix":""},{"lang":"en","surname":"LIU You-qiang","prefix":""}],"aff":[{"rid":"1432236","text":"2"}],"role":["first-author"],"deceased":false},{"name":[],"stringName":[{"lang":"zh","surname":"曹银花","prefix":""},{"lang":"en","surname":"CAO Yin-hua","prefix":""}],"aff":[{"rid":"1432236","text":"2"}],"role":[],"deceased":false},{"name":[],"stringName":[{"lang":"zh","surname":"李景","prefix":""},{"lang":"en","surname":"LI Jing","prefix":""}],"aff":[{"rid":"1432236","text":"2"}],"role":[],"deceased":false},{"name":[],"stringName":[{"lang":"zh","surname":"邱运涛","prefix":""},{"lang":"en","surname":"QIU Yun-tao","prefix":""}],"aff":[{"rid":"1432236","text":"2"}],"role":[],"deceased":false},{"name":[],"stringName":[{"lang":"zh","surname":"秦文斌","prefix":""},{"lang":"en","surname":"QIN Wen-bin","prefix":""}],"aff":[{"rid":"1432236","text":"2"}],"role":[],"deceased":false},{"name":[],"stringName":[{"lang":"zh","surname":"王智勇","prefix":""},{"lang":"en","surname":"WANG Zhi-yong","prefix":""}],"aff":[{"rid":"1432236","text":"2"}],"role":[],"deceased":false},{"name":[],"stringName":[{"lang":"zh","surname":"王大勇","prefix":""},{"lang":"en","surname":"WANG Da-yong","prefix":""}],"aff":[{"rid":"1406648","text":"1"}],"role":[],"deceased":false},{"name":[],"stringName":[{"lang":"zh","surname":"杨光辉","prefix":""},{"lang":"en","surname":"YANG Guang-hui","prefix":""}],"aff":[{"rid":"1432236","text":"2"},{"rid":"2157785","text":"3"}],"role":[],"deceased":false}],"aff":[{"id":"1406648","intro":[{"lang":"zh","label":"1","text":" 北京工业大学 应用数理学院 北京,100124","data":[{"name":"text","data":" 北京工业大学 应用数理学院 北京,100124"}]},{"lang":"en","label":"1","text":" College of Applied Sciences, Beijing University of Technology","data":[{"name":"text","data":" College of Applied Sciences, Beijing University of Technology"}]}]},{"id":"1432236","intro":[{"lang":"zh","label":"2","text":" 北京工业大学 激光工程研究院 北京,100124","data":[{"name":"text","data":" 北京工业大学 激光工程研究院 北京,100124"}]},{"lang":"en","label":"2","text":" Institute of Laser Engineering, Beijing University of Technology","data":[{"name":"text","data":" Institute of Laser Engineering, Beijing University of Technology"}]}]},{"id":"2157785","intro":[{"lang":"zh","label":"3","text":" 中国人民解放军96658部队 北京,100094","data":[{"name":"text","data":" 中国人民解放军96658部队 北京,100094"}]},{"lang":"en","label":"3","text":" Troop 96658, the Chinese People's Liberation Army","data":[{"name":"text","data":" Troop 96658, the Chinese People's Liberation Army"}]}]}]},"abstracts":[{"lang":"zh","data":[{"name":"p","data":[{"name":"text","data":"针对国内大功率半导体激光光纤耦合存在的问题,设计了光纤耦合聚焦系统,研制了5 kW光纤耦合半导体激光器。比较了常见圆光斑光纤耦合与半导体激光方光斑光纤耦合的区别;对国产阵列型半导体激光堆栈,采用光束质量均匀化、偏振合束、多波长合束多路耦合等方式增加能量,将激光耦合进芯径为800 m,数值孔径(NA)为0.2的传能光纤中,实现了光纤耦合半导体激光输出光功率5 109 W,光纤耦合效率85.69%,系统整体电光转换效率49.48%;在聚焦镜焦距为250 mm时其激光功率密度达到210 "},{"name":"sup","data":[{"name":"text","data":"5"}]},{"name":"text","data":" W/cm"},{"name":"sup","data":[{"name":"text","data":"2"}]},{"name":"text","data":",可以用于金属的表面重熔、合金化、熔覆和焊接等领域。该激光器除了传能光纤外,其余部件均为为国产和自主研发,对我国国产高功率光纤耦合半导体激光器的开发具有重要的推动作用。"}]}]},{"lang":"en","data":[{"name":"p","data":[{"name":"text","data":"To overcome the shortcomings of the optical fiber coupling of a domestic higher power diode laser, an optical fiber coupling focusing system was designed and a 5 kW optical coupling diode laser was developed. The optical fiber coupling methods by common circle spot and diode laser squarespot were compared. For a domestic array diode laser stack, the optical quality homogenization, polarization beam bunching, multi-wavelength bunching were used to increase the energies, by which the laser can be coupled into the optical fiber with a core diameter of 800 m and a Numerical Aperture(NA) of 0.2. Thus, the fiber coupled output power reaches 5 109 W, the fiber coupling efficiency is 85.69%, and the electro-optic conversion efficiency of overall system is 49.48%. Moreover, the power density reaches 210 "},{"name":"sup","data":[{"name":"text","data":"5"}]},{"name":"text","data":" W/cm"},{"name":"sup","data":[{"name":"text","data":"2"}]},{"name":"text","data":" when focal length is 250 mm. The laser has been used in multi-wavelength surface remelting, metal alloying, laser cladding and laser welding fields. All the parts of the laser are made in China except the optical fiber for energy transfer, so it promotes the progress of higher power domestic optical fiber coupling lasers."}]}]}],"keyword":[{"lang":"zh","data":[[{"name":"text","data":"激光加工"}],[{"name":"text","data":"半导体激光器"}],[{"name":"text","data":"光纤耦合"}],[{"name":"text","data":"激光焊接"}],[{"name":"text","data":"激光熔覆"}]]},{"lang":"en","data":[[{"name":"text","data":"laser processing"}],[{"name":"text","data":"Diode laser"}],[{"name":"text","data":"fiber Coupling"}],[{"name":"text","data":"laser welding"}],[{"name":"text","data":"Laser cladding"}]]}],"highlights":[],"body":[],"footnote":[],"reflist":{"data":[{"id":"ref1","label":"1","citation":[{"lang":"zh","text":[{"name":"text","data":"徐国建, 钟立明, 杭争翔, 等. 镀锌钢板的光纤耦合半导体激光焊接性能[J]. 激光与光电子学进展, 2014, 51:071402. XU G J, ZHONG L M, HANG ZH X, et al.. Welding performances of galvanized sheet using the fiber coupled diode laser [J]. Laser & Optoelectronics Progress, 2014, 51:071402. 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