Integrated-optic, astronomical, two-beam and three-beam, interferometric combiners have been designed and fabricated for operation in the L band (3 - 4 microns) for the first time. The devices have been realized in titanium-indiffused, x-cut lithium niobate substrates, and on-chip electro-optic fringe scanning has been demonstrated. White light fringes were produced in the laboratory using the two-beam combiner integrated with an on-chip Y-splitter.
@article{arxiv.0911.1106,
title = {An infrared integrated optic astronomical beam combiner for stellar interferometry at 3-4 microns},
author = {Hsien-kai Hsiao and K. A. Winick and John D. Monnier and Jean-Philippe Berger},
journal= {arXiv preprint arXiv:0911.1106},
year = {2018}
}
Comments
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