Annex a - Input Beam Characteristics
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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 [μrad] 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
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Transcript of Annex a - Input Beam Characteristics
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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
