Thermal distribution analysis of multi-core photonic crystal fiber laser

ZHENG Yi-bo; YAO Jian-quan; ZHANG Lei; WANG Yuan; WEN Wu-qi; JING Lei; DI Zhi-gang; KANG Jian-yi

doi:doi:10.1007/s11801-012-1073-8

光电子快报（英文版）, 2012, 8 (1): 13, Published Online: Jul. 12, 2017

Thermal distribution analysis of multi-core photonic crystal fiber laser

论文大纲

ZHENG Yi-bo ^1,2,*YAO Jian-quan ¹ZHANG Lei ²WANG Yuan ^2,3WEN Wu-qi ¹JING Lei ¹DI Zhi-gang ^1,4KANG Jian-yi ¹

Author Affiliations

¹ 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, China

² Hebei Key Laboratory of Optoelectronic Information and Geo-detection Technology, Shijiazhuang University of Economics, Shijiazhuang 050031, China

³ Key Laboratory of Optoelectronics Information and Technical Science, Ministry of Education, Institute of Laser & Optoelectronics,ollege of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin 300072, China

⁴ College of Information, Hebei United University, Tangshan 063009, China

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.

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ZHENG Yi-bo, YAO Jian-quan, ZHANG Lei, WANG Yuan, WEN Wu-qi, JING Lei, DI Zhi-gang, KANG Jian-yi. Thermal distribution analysis of multi-core photonic crystal fiber laser[J]. 光电子快报（英文版）, 2012, 8(1): 13.

Thermal distribution analysis of multi-core photonic crystal fiber laser

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