Role of Thermal Stresses in Degradation of High Power Laser Diodes

来源 :Transactions of Nanjing University of Aeronautics and Astron | 被引量 : 0次 | 上传用户:dlfly2011
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Catastrophic degradation of high power laser diodes is due to the generation of extended defects inside the active parts of the laser structure during the laser operation.The mechanism driving the degradation is strongly related to the existence of localized thermal stresses generated during the laser operation.These thermal stresses can overcome the yield strength of the materials forming the active part of the laser diode.Different factors contribute to reduce the laser power threshold for degradation.Among them the thermal transport across the laser structure constitutes a critical issue for the reliability of the device. Catastrophic degradation of high power laser diodes is due to the generation of extended defects inside the active parts of the laser structure during the laser operation. The mechanism driving the degradation is strongly related to the existence of localized thermal stresses generated during the laser operation. thermal stresses can overcome the yield strength of the materials forming the active part of the laser diode. Different factors contribute to reducing the laser power threshold for degradation. Among them the thermal transport across the laser structure constitutes a critical issue for the reliability of the device .
其他文献
Nearly monodispersed hollow nanospheres of bimetallic NiPt have been synthesized by a one-pot wet chemical method at room temperature with a precursor Ni nanoco
We have prepared a series of (ZnO)1-x(Fe2O3)x r 0.10 bulk samples with various concentrations of Fe dopant by ball milling and investigated their structural, co