in visible beam combination, recently commissioned at the CHARA array. By creating
spatially-modulated fringes in a pupil plane and then dispersing with an integral field unit,
PAVO utilizes the full multi-r0 aperture of the CHARA array over a standard 50%(630-
950nm) bandwidth. In addition, minimal optimized spatial filtering ensures calibration that is
in principle as good as using single-mode fibers. We describe the design of and initial …