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Micro-cavity lasers with directional emission and its characteristic comparison
Yan Changling * #,Shi Jianwei,Li Peng
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:15 May 2013
Accepted by: none
Citation: Yan Changling,Shi Jianwei,Li Peng.Micro-cavity lasers with directional emission and its characteristic comparison[OL]. [15 May 2013] http://en.paper.edu.cn/en_releasepaper/content/4537873
 
 
We demonstrated Lima?on-shaped micro-cavity lasers with directional emission. In experiment, this kind of micro-cavity laser was fabricated with the deformed factor at 0.41, characterized and compared with the traditional F-P cavity ridge laser prepared with the same material at a wavelength of about 10um. From the experimental results, the micro-cavity laser showed an highly directional emission (about 9mW in output peak power) with parallel directional divergence angle of 30 and perpendicular divergence angle of 67 at full width of half maximum, which is similar to that of the ridge laser. The threshold current density of the micro-cavity laser was about 40% lower than that of the ridge laser, and the quality factor was estimated up to 1140.
Keywords:Micro-cavity lasers; directional emission; far-field divergence angle
 
 
 

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