Table 1 Comparisons of emission beam metrics under different conditions

\(\overline{\varDelta {\it\varTheta }_{{x}\_{{\lambda }}_{{\boldsymbol{i}}}-{{\lambda }}_{{\boldsymbol{i}}+{\bf{1}}}}}(\mathrm{mrad})\)

x-direction addressing angle ^a

0.56

9.4

9.4

\(\overline{{{\theta }}_{{x}}}(\mathrm{mrad})\)

x-direction divergence angle ^b

2.36

39.6

11.8

\(\overline{{{\theta }}_{{y}}}(\mathrm{mrad})\)

y-direction divergence angle ^b

0.80

13.4

10.2

\({{\boldsymbol{C}}}_{{\rm{spatial}}-{\rm{1D}}-{\lambda }_{20} \sim {\lambda }_{22}}(\mathrm{mrad})\)

\(\frac{{(2\cdot \overline{\varDelta {{\it\Theta }}_{{x}\_{{\lambda }}_{{\boldsymbol{i}}}-{{\lambda }}_{{\boldsymbol{i}}+{\bf{1}}}}})}^{2}}{\overline{{{\theta }}_{{x}}}}\)

0.53

8.9

30.0

\(FO{V}_{x}\cdot FO{V}_{y}\)

FOV of full-field scanning beams ^c

8.0°

 × 2.4°

102° 

× 31°

102° 

× 26°

\({{\boldsymbol{C}}}_{{\rm{spatial}}-2{\rm{D}}-{\rm{total}}}(\mathrm{ra}\mathrm{d}^{2})\)

\(\frac{{(FO{V}_{x}\cdot FO{V}_{y})}^{2}}{\overline{{{\theta }}_{{\boldsymbol{x}}}}\cdot \overline{{{\theta }}_{{\boldsymbol{y}}}}}\)

18.12

1748

5422