4 August 2016 6- and 8-telescope discrete beam combiners
Author Affiliations +
We conduct an extensive numerical study to single out the best performing rectangular array of evanescently coupled waveguides (discrete beam combiner) that can be used as an integrated optic beam combiner for 6-telescopes at once. We found that the performance of a discrete beam combiner only depends on the conditioning of the Visibility to Pixel Matrix (V2PM) describing it. However, we found that the condition number of V2PM pertaining to different beam combiner architectures cannot be compared. We further report on the possible input waveguide configuration of an 8-telescope discrete beam combiner featuring 8x8 or 9x9 waveguides.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ronny Errmann, Ronny Errmann, Stefano Minardi, Stefano Minardi, "6- and 8-telescope discrete beam combiners", Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 990733 (4 August 2016); doi: 10.1117/12.2232329; https://doi.org/10.1117/12.2232329

Back to Top