• High Power Laser Science and Engineering
  • Vol. 6, Issue 2, 02000e18 (2018)
Wei Chen1, Bowen Liu1, Youjian Song1, Lu Chai1, Qianjin Cui2, Qingjing Liu2, Chingyue Wang1, and Minglie Hu1
Author Affiliations
  • 1Ultrafast Laser Laboratory, Key Laboratory of Opto-Electronic Information Technology, Ministry of Education, School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China
  • 2Laize Photonics Co., Ltd, Beijing 101399, China
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    Abstract

    We demonstrate an all polarization-maintaining (PM) fiber mode-locked laser seeded, hybrid fiber/solid-slab picosecond pulse laser system which outputs , 10 ps pulses at the central wavelength of 1064 nm. The beam quality factors in the unstable and stable directions are 1.35 and 1.31, respectively. picosecond pulses at the central wavelength of 355 nm are generated through third harmonic generation (THG) by using two (LBO) crystals, in order to get better processing efficiency on polycrystalline diamonds. The high pulse energy and beam quality of these ultraviolet (UV) picosecond pulses are confirmed by latter experiments of material processing on polycrystalline diamonds. This scheme which combines the advantages of the all PM fiber mode-locked laser and the solid-slab amplifier enables compact, robust and chirped pulse amplification-free amplification with high power picosecond pulses.
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    Wei Chen, Bowen Liu, Youjian Song, Lu Chai, Qianjin Cui, Qingjing Liu, Chingyue Wang, Minglie Hu. High pulse energy fiber/solid-slab hybrid picosecond pulse system for material processing on polycrystalline diamonds[J]. High Power Laser Science and Engineering, 2018, 6(2): 02000e18
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    Received: Dec. 30, 2017
    Accepted: Mar. 7, 2018
    Published Online: Aug. 15, 2018
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