Analysis of Beam Emission Control Strategy during Laser Propulsion

Table 1. Beam divergence angle θ_d caused by diffraction effect
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Table 1. Beam divergence angle θ_d caused by diffraction effect
$M^{2} = 1$ $M^{2} = 2$ $M^{2} = 3$
D
/m
$θ_{d}$ /
μrad
$θ_{d}$ /
μrad
$θ_{d}$ /
μrad
2 1.19 2.38 3.58
4 0.60 1.19 1.78
6 0.40 0.79 1.19

Table 2. Beam divergence angle θ_t caused by atmospheric turbulence effect
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Table 2. Beam divergence angle θ_t caused by atmospheric turbulence effect
$C_{n} = 10^{- 6} m^{- 1 / 3}$ $C_{n} = 10^{- 7} m^{- 1 / 3}$ $C_{n} = 10^{- 8} m^{- 1 / 3}$
Z/km $θ_{t}$ / $μ r a d$ $θ_{t}$ / $μ r a d$ $θ_{t}$ / $μ r a d$
10 314.4 19.8 1.25

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Chunyan CHEN, Si LIU, Xinbing WANG. Analysis of Beam Emission Control Strategy during Laser Propulsion[J]. Optoelectronic Technology, 2021, 41(3): 199

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