Annex a - Input Beam Characteristics

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anexa

Transcript of Annex a - Input Beam Characteristics

  • 10 PW LBTS input laser beam parameters LBTS input laser beam specifications

    Input Pulse Energy (IPE) [J] 150 IPE 250

    Input Pulse Duration (IPD) [fs] 15 IPD 25

    Input central wavelength (ICWL) [nm] 810 ICWL 820

    Input spectral bandwidth (ISB) [nm] 50 ISB 70 (FWHM) [720; 890] (Hard-clip)

    Input Spatial Profile (ISP) [mm]

    7th order super-Gaussian type with

    ISP diameter (FWHM) = 450

    ISP diameter (Hard-clip) = 550

    Height of the laser beam optical axis from the floor [mm] 1500+ 10

    Position of the beam optical axis in the horizontal plane According to the attached drawings

    Input spatial intensity modulation (ISIM) ISIM < 25%

    Input Strehl Ratio (ISR) 0.75 ISR 0.9

    Input Beam Pointing (IBP) rms [rad] 2 IBP 3

    Beam polarization state Linearly polarized in the horizontal plane

    Direction and position error of the entrance beam

    The distance between the center of the entrance beam and the

    theoretical center of the entrance pupil is smaller than 15 mm. The

    angle between the optical axis of the entrance beam and the theoretical

    axis of the entrance pupil is smaller than 1 mrad.

    Pulse repetition rate (PRR) Maximum PRR = 1 pulse/min