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The elliptical micro-lens array in the application of the LDA beam shaping
Affiliation:1. Department of Physics, Sichuan Normal University, Chengdu 610101, China;2. Department of Physics, Zhejiang University, Hangzhou 310027, China;1. School of Opto-Electronic Information Science and Technology, Yantai University, Yantai 264005, China;2. School of Science, Minzu University of China, Bejiing 100081, China;3. Optical Physics Lab., Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;1. Department of Geriatric Comprehensive Surgery, Chinese PLA General Hospital, Beijing 100853, China;2. Department of Geriatric Cardiology, Chinese PLA General Hospital, Beijing 100853, China;3. Department of Emergency, Lingqiu People’s Hospital of Datong City, Shanxi 034400, China;4. Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China;5. Attardi Institute of Mitochondrial Biomedicine and Zhejiang Provincial Key Laboratory of Medical Genetics, Wenzhou Medical College, Wenzhou, Zhejiang, China;6. Division of Human Genetics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA;7. Department of Genetics, College of Life Sciences, Zhejiang University, Zhejiang, China;1. Research school of plasma physics, RINST, North-Kargar, Tehran, Iran;2. Department of physics and energy engineering, Amirkabir university of technology, Tehran, Iran
Abstract:Based on the analysis of semiconductor laser-diode array (LDA) beam characteristics, a new scheme of beam collimation and focusing is proposed. The elliptical micro-lens shaping the beam of LDA has been analyzed by theoretical and simulated by optical ray tracing. The efficiency for laser beam coupling into the optical fiber is 73.2% of the whole system.
Keywords:Elliptical micro-lens array  Beam collimation  Optical fiber coupling
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