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The analysis for thermal resistance of multi-emitter laser diodes
Li Jingwan 1 #,Feng Shiwei 2 *,Zhang Guangchen 2,Xiong Cong 2,Qiao Yanbin 2,Guo Chunsheng 2
1.Institute of Electronic Information & Control Engineering,Beijing University of Technology, Beijing 100124
2.Institute of Electronic Information & Control Engineering, Beijing University of Technology, 100124
*Correspondence author
#Submitted by
Subject:
Funding: Specialized Research Fund for the Doctoral Program of Higher Education of China(No.No.20091103110006), National High Technology Research and Development Program of China(No.No.2009AA032704), Natural Science Foundation of Beijing(No.No.4092005)
Opened online:23 December 2011
Accepted by: none
Citation: Li Jingwan,Feng Shiwei,Zhang Guangchen.The analysis for thermal resistance of multi-emitter laser diodes[OL]. [23 December 2011] http://en.paper.edu.cn/en_releasepaper/content/4456091
 
 
The transient temperature characteristics of high power laser diode (LD) with multiple emitters were presented and discussed in this paper. The transient temperature response curves were measured by electrical temperature sensitive parameter method. Structure function method was performed to evaluate the thermal resistance constitution for multiple emitters LD. The thermal resistance network model was adopted to characterize the thermal behavior of LDs with one, two and four emitters respectively. The experiment result shows that chip level thermal resistance of multiple emitters LD decreases proportionally to the number of emitters, while the package level thermal resistance remains unchangeable. The study provides an important rule in the thermal design of multiple emitters LD.
Keywords:Laser diode; thermal resistance; structure function
 
 
 

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