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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Acknowledgments
We would like to thank Zhang Lei and Hu Jinmeng for their help, and the work is supported by the National Natural Science Foundation of China under Grant No. 60908036.
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Zhang, X., Diao, W., Liu, Y. et al. Single-frequency polarized eye-safe all-fiber laser with peak power over kilowatt. Appl. Phys. B 115, 123–127 (2014). https://doi.org/10.1007/s00340-013-5582-3
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DOI: https://doi.org/10.1007/s00340-013-5582-3