Efficient heat transfer in high-power fiber lasers  

作　　者：范元媛 何兵 周军 郑寄托 代守军 赵纯 魏运荣 楼祺洪 

机构地区：[1]Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences [2]Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques [3]Graduate University of Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2012年第11期32-35,共4页中国光学快报（英文版）

基　　金：supported by the National Science and Technology Major Project(No.2010ZX04013);the National"863"Program of China(No.2011AA030201);the Shanghai Rising-Star Program(No.09QB1401700);the Natural Science Foundation of Shanghai(No.102R1433600);the National Natural Science Foundation of China(No.60908011)

摘　　要：The maximum output power of fiber lasers limited by the thermal degradation of double-clad fiber coatings is theoretically simulated. We investigated the thermal effects on high-power continuous wave （CW） fiber lasers with a focus on heating at the splice joints as well as on the doped fiber caused by quantum defects. Whether thermal interface materials are used or not, the thermal contact resistances between the fiber and its heat sink are measured separately while using different cooling equipments. Though the thermal management of splices is more difficult than that of active fibers, a temperature increase of 0.019 K/W is obtained for a splice joint into which the pump light launches. The splice joint sustains 3 kW of total passing power.The maximum output power of fiber lasers limited by the thermal degradation of double-clad fiber coatings is theoretically simulated. We investigated the thermal effects on high-power continuous wave （CW） fiber lasers with a focus on heating at the splice joints as well as on the doped fiber caused by quantum defects. Whether thermal interface materials are used or not, the thermal contact resistances between the fiber and its heat sink are measured separately while using different cooling equipments. Though the thermal management of splices is more difficult than that of active fibers, a temperature increase of 0.019 K/W is obtained for a splice joint into which the pump light launches. The splice joint sustains 3 kW of total passing power.

关 键 词：Fiber lasers Interfaces (materials) 

分 类 号：TN248[电子电信—物理电子学] TQ051.5[化学工程]