Photonics-based mid-infrared interferometry: 4-year results of the ALSI project and future prospects

Autor:	Labadie, L., Minardi, S., Tepper, J., Diener, R., Muthusubramanian, B., Pott, J. -U., Nolte, S., Gross, S., Arriola, A., Withford, M. J.
Rok vydání:	2020
Předmět:	Astrophysics - Instrumentation and Methods for Astrophysics
Druh dokumentu:	Working Paper
Popis:	In this contribution, we review the results of the ALSI project (Advanced Laser-writing for Stellar Interferometry), aimed at assessing the potential of ultrafast laser writing to fabricate mid-infared integrated optics (IO) devices with performance compatible with an implementation in real interferometric instruments like Hi5 or PFI. Waveguides for the L, L' and M bands with moderate propagation losses were manufactured in Gallium Lanthanum Sulfide and ZBLAN glasses and used to develop photonic building blocks as well as a full mid-IR 4-telescope beam combiner. We discuss the advantages and disadvantages of the tested combiners and discuss a possible roadmap for the continuation of this work. Comment: 16 pages, 9 figures, 1 table
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2003.02582 Zobrazit plný text záznamu View this record from Arxiv