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Arrayed waveguide gratings for photonics applications

  • Arrayed Waveguide Grating (AWG) is a passive optical component, which have found applications in a wide range of photonic applications including telecommunications and medicine. Silica-on-Silicon (SoS) based AWGs use a low refractive-index contrast between the core (waveguide) and the cladding which leads to some significant advantages such as low propagation losses and low fiber coupling losses between the AWG waveguides and the fibres. Therefore, they are an attractive DWDM solution offering higher channel count technology and good performance characteristics compared to other methods. However, the very low refractive-index contrast means the bending radius of the waveguides needs to be very large (on the order of several millimeters) and may not fall below a particular critical value to suppress bending losses. As a result, silica-based waveguide devices usually have a very large size that limits the integration density of SiO2-based photonic integrated devices. High-index contrast AWGs (such as silicon, silicon nitride or polymer-based waveguide devices) feature much smaller waveguide size compared to low index contrast AWGs. Such compact devices can easily be implemented on a chip and have already found applications in emerging applications such as optical sensors, devices for DNA diagnostics and optical spectrometers for infrared spectroscopy.In this work, we present the design, simulation, technological verification and applications of both, the low-index contrast and high-index contrast AWGs. For telecommunication applications AWG-MUX/Demux with up to 128-channels will be presented. For medical applications the AWG-spectrometer with up to 512-channels will be presented.This work was carried out in the framework of the projects: ADOPT No. SK-AT-20-0012, NOVASiN No. SK-AT-20-0017 and AUTOPIC No. APVV-17-0662 from Slovak research and development agency of Ministry of Education, Science, Research and Sport of the Slovak Republic and No. SK 07/2021 and SK 08/2021 from Austrian Agency for International Cooperation in Education and Research (OeAD-GmbH); and project PASTEL, no. 2020-10-15-001, funded by SAIA.

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Author:Dana SeyringerORCiD, Stanislava SerecunovaORCiD, Frantisek Uherek, Jozef Chovan, Dusan Pudis, Heinz Seyringer
URL:https://dergipark.org.tr/en/pub/actamat/issue/65726/1020525
Date:13.12.2021
ISSN:2630-5909
Parent Title (English):Acta Materialia Turcica
Document Type:Article
Language:English
Year of publication:2021
Release Date:2021/12/13
Tag:Photonics
Volume:o.Jg.
Issue:Special Issue: Interphotonics 2021. 3rd International Conference on Photonics Research. Book of Abstracts
First Page:14
Organisationseinheit:Forschung / Forschungszentrum Mikrotechnik
DDC classes:500 Naturwissenschaften und Mathematik
Open Access?:nein
Peer review:wiss. Beitrag, nicht peer-reviewed
Publicationlist:Seyringer, Dana
Seyringer, Heinz