An integrated optics beam combiner for the second generation VLTI instruments

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Table 13:

Contrasts and phase-shifts obtained when the splitting of polarizations is done before or after the combination, and when no splitting is achieved. Errors are statistical.
Pixel	12¹	12²	12³	12⁴
$\langle V \rangle$ before	83.7 $\pm$ 0.3	83.6 $\pm$ 0.3	81.3 $\pm$ 0.3	81.7 $\pm$ 0.3
$\langle V \rangle$ after	79.6 $\pm$ 0.2	79.4 $\pm$ 0.2	78.2 $\pm$ 0.2	77.2 $\pm$ 0.2
$\langle V \rangle$ $\varnothing$	71.3 $\pm$ 0.5	71.2 $\pm$ 0.5	66.7 $\pm$ 0.5	66.9 $\pm$ 0.5

Polar splitting	Before	After	$\varnothing$
Phase-shifts	78.98 $\pm$ 0.03	79.80 $\pm$ 0.08	76.12 $\pm$ 0.07

Source LaTeX | All tables | In the text

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