High Power Laser and Particle Beams, Volume. 35, Issue 8, 082002(2023)

Generation technology of synchronous trigger signals with low time jitter and high delay resolution

Shenzhen Wang, Chao Wang, Dong Su, Zhao Dang*, Xiongjun Zhang, Wenqi Chen, and Ji Chen
Author Affiliations
  • Laser Fusion Research Center, CAEP, Mianyang 621900, China
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    Figures & Tables(13)
    Framework of the synchronizing system with high resolution and low jitter
    Encoding and decoding of the reference clock and delayed start signal
    Principle of coarse delay by using transceiver
    Transceiver configured in Basic (PMA Direct)
    Principle of fine delay by using stripline delay line
    Wave of the transceiver implementing the coarse delay of the synchronization signal
    Codec timing logic simulation of the reference clock and delayed start signal
    Generation of the waveform data for synchronous signals with coarse delay
    Simulation of key circuits on the board
    Framework of experimental test system
    Timing jitter result of synchronous signals
    • Table 1. Results of delay setting error

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      Table 1. Results of delay setting error

      No.delay on the CH1/ns delay on the CH2/ns delay between the two channels in the oscilloscope/ns theoretical value/ns error between the theoretical value and measured/ps
      111−0.027−0.027(intrinsic delay)0
      2110−9.031−9.0274
      3150−49.036−49.0279
      41100−99.034−99.0277
      51300−299.035−299.0278
      61800−799.036−799.0279
      711000−990.033−999.0276
      812000−1999.039−1999.02712
      915000−4999.053−4999.02726
      10110000−9999.063−9999.02736
      11120000−19999.083−4999.02756
    • Table 2. Results of delay resolution

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      Table 2. Results of delay resolution

      No.delay on the CH1/ns delay on the CH2/ns delay between the two channels in the oscilloscope/ps theoretical value/ps error between the theoretical value and measured/ps
      111.00−27−27(intrinsic delay)0
      211.01−40−373.0
      311.02−47−470
      411.03−59−572.0
      511.04−66.7−67−0.3
      611.05−81.6−774.6
      711.08−107.8−1070.8
      811.10−127.5−1270.5
      911.15−179.8−1772.8
      1011.20−225.7−227−1.3
      1111.25−279−2772.0
      1211.30−331.5−3274.5
      1311.31−341.7−3374.7
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    Shenzhen Wang, Chao Wang, Dong Su, Zhao Dang, Xiongjun Zhang, Wenqi Chen, Ji Chen. Generation technology of synchronous trigger signals with low time jitter and high delay resolution[J]. High Power Laser and Particle Beams, 2023, 35(8): 082002

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    Paper Information

    Category: Operation and Maintenance of Large Scale Scientific Facility

    Received: Aug. 20, 2022

    Accepted: May. 23, 2023

    Published Online: Aug. 16, 2023

    The Author Email: Dang Zhao (qingzhaodangma@caep.cn)

    DOI:10.11884/HPLPB202335.220294

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