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Thermal distribution analysis of multi-core photonic crystal fiber laser

期刊名称：Optoelectronics Letters
时间：0
页码：13-16
语言：英文
分类：TN248.1[电子电信—物理电子学] TQ171.623[化学工程—玻璃工业;化学工程—硅酸盐工业]
作者机构：[1]Key Laboratory of Optoelectronics Information and Technical Science, Ministry of Education, Institute of Laser ＆ ~ Optoelectronics, CollegeofPrecisionlnstrumentsandOptoelectronicEngineering, Tianjin University , Tianjin 300072, China, [2]Hebei Key Laboratory of Optoelectronic Information and Geo-detection Technology, Shijiazhuang University of Economics, Shijiazhuang 050031, China, [3]College of Information, Hebei United University, Tangshan 063009, China
相关基金：This work has been supported by the National Basic Research Program of China （No.2010CB327801）, the Key Program of National Natural Science Foundation of China （No.60637010）, and the Natural Science Research Project in University of Hebei Province （No.Z2010163）.
相关项目：超大功率集成式多芯微结构光纤激光器的研究

关键词：光子晶体光纤激光器, 热分布, 多核心, 矢量有限元法, 核心温度, 冷却系统, PCF, 热负荷, Cooling systems, Fiber lasers, Finite element method, Photonic crystal fibers, Thermal load, Thermodynamic properties

中文摘要：

photonic 水晶的热性质有 18 个循环地分布式的核心的纤维(PCF ) 激光被使用完整向量的有限元素方法调查(女性) 。结果证明 18 核心 PCF 与单个核心 PCF 和 19 核心 PCF 相比举办更有效的热分散建设。另外，有不同热负担的 18 核心 PCF 激光的温度分发被模仿。当热负担在近似对应于 600 W 的抽的力量的 80 W/m 上面时，结果证明核心温度接近近似拉 1800 K 的价值的纤维，当当热负担在近似对应于 110 W 的抽的力量的 15 W/m 上面时，涂层温度接近大约 550 K 的损坏价值时。因此冷却的纤维是必要的完成力量可伸缩。与另外的不同冷却系统相比，使计划凉下来的铜被发现是一个有效方法减少热效果。

英文摘要：

The thermal properties of photonic crystal fiber （PCF） laser with 18 circularly distributed cores are investigated by using full-vector finite element method （FEM）. The results show that the 18-core PCF has a more effective thermal dispersion construction compared with the single core PCF and 19-core PCF. In addition, the temperature distribution of 18-core PCF laser with different thermal loads is simulated. The results show that the core temperature approaches the fiber drawing value of 1800 K approximately when the thermal load is above 80 W/m which corresponds to the pumping power of 600 W approximately, while the coating temperature approaches the damage value of about 550 K when the thermal load is above 15 W/m which corresponds to the pumping power of 110 W approximately. Therefore the fiber cooling is necessary to achieve power scaling. Compared with other different cooling systems, the copper cooling scheme is found to bean effec- tive method to reduce the thermal effects.

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