6- and 8-telescope discrete beam combiners

Ronny Errmann; Stefano Minardi

doi:10.1117/12.2232329

4 August 2016 6- and 8-telescope discrete beam combiners

Ronny Errmann, Stefano Minardi

Proceedings Volume 9907, Optical and Infrared Interferometry and Imaging V; 990733 (2016) https://doi.org/10.1117/12.2232329
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

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.

Citation Download Citation

Ronny Errmann and Stefano Minardi "6- and 8-telescope discrete beam combiners", Proc. SPIE 9907, Optical and Infrared Interferometry and Imaging V, 990733 (4 August 2016); https://doi.org/10.1117/12.2232329

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available