Fig. 4: Splitting, coupling ratios and ζ coefficients of the beam combiner.
From: Scalable photonic-based nulling interferometry with the dispersed multi-baseline GLINT instrument
a Splitting ratios of beam 1 between the photometric output and the three couplers with respect to wavelength. b Coupling ratios of the coupler combining the beams 1 and 2 with respect to wavelength. c ζ coefficients for beams 1 and 2 for the outputs of Null 1 with respect to wavelength.
