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Directional emission of micro-cavity lasers with improved output power
Shi Jianwei,Yan Changling * #,Li Peng,Zhu Dongda #
Changchun University of Science and Technology, State Key Lab on High Power Seimconductor lasers, Changchun 130022
*Correspondence author
#Submitted by
Subject:
Funding: Ph.D. Programs Foundation of Ministry of Education of China （No.No. 20102216110004）
Opened online:21 February 2014
Accepted by: none
Citation: Shi Jianwei,Yan Changling,Li Peng.Directional emission of micro-cavity lasers with improved output power[OL]. [21 February 2014] http://en.paper.edu.cn/en_releasepaper/content/4585491
 
 
Directional emission of light is guided by employing the lima?on-shaped cavity laser structure. In order to overcome the low output power character of micro-cavity lasers, a large size device structure is used in this paper. The micro-cavity lasers were demonstrated by using quantum cascade laser material. The micro-cavity laser with large size of 120um produced a light output peak power of 12mW with a directional emission at far-field divergence angle of about 31 for the parallel direction and 68 for the perpendicular direction at full width of half maximum. The micro-cavity laser array was also fabricated, and a light output peak power of about 20mW was obtained.
Keywords:Micro-cavity lasers; directional emission; light output power
 
 
 

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