Single-frequency polarized eye-safe all-fiber laser with peak power over kilowatt |
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| Authors: | Xin Zhang Weifeng Diao Yuan Liu Jiqiao Liu Xia Hou Weibiao Chen |
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| Affiliation: | 1. Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Research Center of Space Laser Information Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Qinghe Road 390, Jiading, Shanghai, 201800, China
2. Graduate University of the Chinese Academy of Sciences, Beijing, 100049, China
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| Abstract: | An all-fiber, single-frequency, linearly polarized, high peak-power, pulsed laser at 1,540 nm for Doppler wind lidar is presented. This laser is composed of a single-frequency, narrow-linewidth external cavity diode laser, and multistage fiber amplifiers. A peak power of 1.08 kW and a pulse width of 500 ns at 10 kHz repetition rate are achieved, which is the highest peak power with a linewidth of 800 kHz in erbium-doped silica fiber to our knowledge. The beam quality of M 2 < 1.3 and a polarization extinction ratio over 16 dB are obtained. This laser will be employed in a compact long-range coherent Doppler wind lidar. |
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