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Thermal distribution analysis of multi-core photonic crystal fiber laser

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【作者】 郑一博； 姚建铨； 张磊； 王远； 温午麒； 景磊； 邸志刚； 康建诩；

【Author】 ZHENG Yi-bo1,2**,YAO Jian-quan1,ZHANG Lei2,WANG Yuan1,2,WEN Wu-qi1,JING Lei1,DI Zhi-gang1,3,and KANG Jian-yi11.Key Laboratory of Optoelectronics Information and Technical Science,Ministry of Education,Institute of Laser & Optoelectronics,College of Precision Instruments and Optoelectronic Engineering,Tianjin University,Tianjin 300072,China2.Hebei Key Laboratory of Optoelectronic Information and Geo-detection Technology,Shijiazhuang University of Economics,Shijiazhuang 050031,China3.College of Information,Hebei United University,Tangshan 063009,China

【机构】 Key Laboratory of Optoelectronics Information and Technical Science,Ministry of Education,Institute of Laser & Optoelectronics,College of Precision Instruments and Optoelectronic Engineering,Tianjin University； Hebei Key Laboratory of Optoelectronic Information and Geo-detection Technology,Shijiazhuang University of Economics； College of Information,Hebei United University；

【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 be an effective method to reduce the thermal effects.

【Abstract】 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 be an effective method to reduce the thermal effects.

【关键词】 photonic； pumping； cladding； drawing； scaling； silica； fused； outer； hexagonal； doping；
【基金】 supported by the National Basic Research Program of China(No.2010CB327801);the Key Program of National Natural Science Foundation of China(No.60637010);the Natural Science Research Project in University of Hebei Province(No.Z2010163)
  • 【文献出处】 Optoelectronics Letters ,光电子快报(英文版) , 编辑部邮箱 ,2012年01期
  • 【分类号】TN248
  • 【下载频次】69
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