Design of 20 W fiber-coupled green laser diode by Zemax |
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| Authors: | Yunfei Qi Pengfei Zhao Yulong Wu Yongqi Chen Yonggang Zou |
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| Affiliation: | 1. State Key Laboratory on High Power Semiconductor Lasers, Changchun University of Science and Technology, Changchun 130022, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;2. Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;3. State Key Laboratory on High Power Semiconductor Lasers, Changchun University of Science and Technology, Changchun 130022, China |
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| Abstract: | We represent a design of a 20 W,fiber-coupled diode laser module based on 26 single emitters at 520 nm.The module can produce more than 20 W output power from a standard fiber with core diameter of 400μm and numerical aperture (NA) of 0.22.To achieve a 20 W laser beam,the spatial beam combination and polarization beam combination by polarization beam splitter are used to combine output of 26 single emitters into a single beam,and then an aspheric lens is used to couple the combined beam into an optical fiber.The simulation shows that the total coupling efficiency is more than 95％. |
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| Keywords: | laser diode green light single emitter combination technology |
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