We present a compact setup based on a three-dimensional integrated optical component, allowing the mea- surement of spectrally resolved complex-visibilities for three channels of polychromatic light. We have tested a prototype of the component in R band and showed that accurate complex visibilities could be retrieved over a bandwidth of 50 nm centered at 650 nm (resolution: R=130). Closure phase stability in the order of λ/60 was achieved implying that the device could be used for spectro-interferometry imaging.
@article{arxiv.1405.5426,
title = {3D-integrated beam combiner for optical spectro-interferometry},
author = {Stefano Minardi and Allar Saviauk and Felix Dreisow and Stefan Nolte and Thomas Pertsch},
journal= {arXiv preprint arXiv:1405.5426},
year = {2015}
}
Comments
8 pages, 5 figures, Proc. SPIE, paper number 9146-46 (2014)