Advances in broadband-integrated optic beam combiners for mid-IR astronomical interferometers

Tepper J, Diener R, Labadie L, Minardi S, Thomson RR, Nolte S (2017)

Publication Type: Conference contribution

Publication year: 2017

Journal

Proceedings of SPIE Society of Photo-optical Instrumentation Engineers (SPIE)

Publisher: SPIE

Book Volume: 10110

Conference Proceedings Title: Proceedings of SPIE - The International Society for Optical Engineering

Event location: San Francisco, CA, USA

ISBN: 9781510606616

DOI: 10.1117/12.2249986

Abstract

Photonic technology has pushed the limits of astronomy ever more in recent years. Especially, integrated optics (IO) has led to new standards in accuracy and stability in the eld of astronomical interferometry where several beams need to be coherently and simultaneously combined. We follow and extend the IO concept by writing mid-IR waveguides in gallium lanthanum sul de (GLS) using Ultrafast Laser Writing (ULI). Here, we report on the monochromatic and broadband interferometric capabilities in the mid-IR of such combiners. Finally, we outline the way to a ber-fed IO 4-telescope instrument for next-generation astronomical interferometers.

Involved external institutions

Universität zu Köln DE Germany (DE) Friedrich-Schiller-Universität Jena DE Germany (DE) Heriot-Watt University GB United Kingdom (GB)

How to cite

APA:

Tepper, J., Diener, R., Labadie, L., Minardi, S., Thomson, R.R., & Nolte, S. (2017). Advances in broadband-integrated optic beam combiners for mid-IR astronomical interferometers. In Yakov G. Soskind, Craig Olson (Eds.), Proceedings of SPIE - The International Society for Optical Engineering. San Francisco, CA, USA: SPIE.

MLA:

Tepper, Jan, et al. "Advances in broadband-integrated optic beam combiners for mid-IR astronomical interferometers." Proceedings of the Photonic Instrumentation Engineering IV, San Francisco, CA, USA Ed. Yakov G. Soskind, Craig Olson, SPIE, 2017.

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