All-fiber,high power single-frequency linearly polarized ytterbium-doped fiber amplifier |
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| Authors: | Chi Liu Yunfeng Qi Yaqian Ding Jun Zhou Jingxing Dong Yunrong Wei and Qihong Lou |
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| Institution: | 1 Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800 China 2 Graduate University of the Chinese Academy of Sciences,Beijing 100049,China |
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| Abstract: | We report an all-fiber high power,single frequency large-mode area (LMA) linearly polarized ytterbiumdoped fiber amplifiers (YDFA) module,which is based on the master oscillator multi-stage power amplifiers (MOPA).The maximum output power is 43.8 W at a wavelength of 1064 nm when 60-W launched pump light is coupled,with high slope efficiency of 88%,polarization extinction rate (PER) >17.2 dB and nearly diffraction-limited beam quality (M 2 <1.1). |
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