High Power Laser Science and Engineering, Volume. 11, Issue 6, 06000e93(2023)
Reducing laser beam fluence and intensity fluctuations in symmetric and asymmetric compressors
Figures & Tables(5)
Fig. 1. AFGC scheme. Gratings in each pair are parallel and identical. Distances between the gratings 
, groove densities 
and incidence angles 
are different in different pairs.
Fig. 2. Schematic representation of the field after propagation in free space (a), the TC (b) and the AFGC (c), (d) in three domains. Solid magenta lines depict the intensity front.
Fig. 3. One-dimensional fluence fluctuation spectrum 
at the AFGC output for a pulse having duration 
(
). The difference between the colored and black curves shows the efficiency of fluence smoothing at a given 
. The efficiency of small-scale self-focusing suppression for a pulse with duration 
will be equal to the efficiency of fluence smoothing 
(see the text).
.
Table 1. Parameters of the compressors:
TC [13], AFGC[24] and SSGC[25].View tableView in ArticleTable 1. Parameters of the compressors:
TC [13], AFGC[24] and SSGC[25].Parameter TC AFGC SSGC $\alpha$ 45.5 61.0 61.0 57.0 $N$ 1200 1400 1400 1400 $L$ 1850 1401 1079 2300 $A$ 0.97 0.84 0.84 1.00 $B$ 1.66 1.67 1.67 2.12 $C$ 1.61 1.20 1.20 1.40 $D$ 2.07 1.99 1.99 2.10 $E$ 3.49 3.35 3.35 3.88 $F$ 3.58 4.24 4.24 4.48 $\Delta L$ 0 271 2303 $\Delta L^{\prime }$ 0 539 4881
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Efim Khazanov. Reducing laser beam fluence and intensity fluctuations in symmetric and asymmetric compressors[J]. High Power Laser Science and Engineering, 2023, 11(6): 06000e93
Paper Information
Category: Research Articles
Received: Aug. 19, 2023
Accepted: Oct. 23, 2023
Posted: Oct. 26, 2023
Published Online: Jan. 2, 2024
The Author Email: Efim Khazanov (efimkhazanov@gmail.com)
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