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Chinese Optics Letters, Volume. 16, Issue 5, 053201(2018)

Experimental investigation on pulse-contrast degradation caused by surface reflection in optical parametric chirped-pulse amplification

Xinliang Wang1,2,3, Xiaoming Lu2, Xiaoyang Guo4, Rongjie Xu2, and Yuxin Leng2,3、*
Author Affiliations
  • 1School of Physics Science and Engineering, Tongji University, Shanghai 200092, China
  • 2Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
  • 4Osaka University, Osaka 565-0871, Japan
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    Schematic of experimental setup.

    Fig. 1. Schematic of experimental setup.

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    Autocorrelation trace of the amplified pulse. The inset is the spectrum after the two OPCPA stages.

    Fig. 2. Autocorrelation trace of the amplified pulse. The inset is the spectrum after the two OPCPA stages.

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    (a) Contrast scanning results of compressed pulses with different etalons (E1, black line; E2, red line; E3, green line) and without an etalon (blue line). (b) Measured intensities of the first pre-pulses varying with the surface reflection ratio r.

    Fig. 3. (a) Contrast scanning results of compressed pulses with different etalons (E1, black line; E2, red line; E3, green line) and without an etalon (blue line). (b) Measured intensities of the first pre-pulses varying with the surface reflection ratio r.

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    Measured intensities of the first pre-pulses with different pump-to-signal conversion efficiencies.

    Fig. 4. Measured intensities of the first pre-pulses with different pump-to-signal conversion efficiencies.

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    Measured intensities of the first pre-pulses by using parameters listed in Table 1.

    Fig. 5. Measured intensities of the first pre-pulses by using parameters listed in Table 1.

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    • Table 1. Parameters in OPCPA Amplifiers and Measured Intensities of the First Pre-pulses

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      Table 1. Parameters in OPCPA Amplifiers and Measured Intensities of the First Pre-pulses

      Number12345678
      EtalonE1E1E1E1E2E2E2E3
      AttenuationNE06ANE06ANE06ANone*NoneNoneNE06ANone
      CrystalBothBothBothBothBothFirstFirstBoth
      Pump/mJ160170180160160160160160
      Signal/mJ4.485.97.610.510.54.51.910.5
      Contrast3.53 × 10−56.34 × 10−59.96 × 10−52.13 × 10−49.63 × 10−63.02 × 10−61.52 × 10−74.43 × 10−9
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    Xinliang Wang, Xiaoming Lu, Xiaoyang Guo, Rongjie Xu, Yuxin Leng, "Experimental investigation on pulse-contrast degradation caused by surface reflection in optical parametric chirped-pulse amplification," Chin. Opt. Lett. 16, 053201 (2018)

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    Paper Information

    Category: Ultrafast Optics

    Received: Jan. 3, 2018

    Accepted: Apr. 3, 2018

    Published Online: Dec. 6, 2018

    The Author Email: Yuxin Leng (lengyuxin@mail.siom.ac.cn)

    DOI:10.3788/COL201816.053201

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology