Zobrazeno 1 - 10
of 305
pro vyhledávání: '"Aalto, Timo"'
We show theoretically and experimentally how a flat-top second-order response can be achieved with a self-coupled single add-drop ring resonator based on two couplers with different splitting ratios. The resulting device is a 1x1 filter, reflecting l
Externí odkaz:
http://arxiv.org/abs/2304.11146
We have systematically studied multimode interferometer (MMI) splitters made from multiple tapered sections. The goal is to create a library of robust and low-loss splitters covering all splitting ratios (SR) for our silicon photonics platform based
Externí odkaz:
http://arxiv.org/abs/2302.12839
Autor:
Cherchi, Matteo, Bera, Arijit, Kemppinen, Antti, Nissilä, Jaani, Tappura, Kirsi, Caputo, Marco, Lehtimäki, Lauri, Lehtinen, Janne, Govenius, Joonas, Hassinen, Tomi, Prunnila, Mika, Aalto, Timo
Photonic integrated circuits (PICs) are expected to play a significant role in the ongoing second quantum revolution, thanks to their stability and scalability. Still, major upgrades are needed for available PIC platforms to meet the demanding requir
Externí odkaz:
http://arxiv.org/abs/2201.04715
We demonstrate for the first time flat-top interleavers based on cascaded Mach-Zehnder interferometers (MZIs) which use only single multimode interferometers (MMIs) as power splitters. Our previous designs were based on 4-stage cascades of MZIs, wher
Externí odkaz:
http://arxiv.org/abs/2002.07521
Akademický článek
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Akademický článek
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Autor:
Muntaha, Sidra Tul, Hokkanen, Ari, Harjanne, Mikko, Cherchi, Matteo, Suopajärvi, Pekka, Karvinen, Petri, Pekkarinen, Markku, Roussey, Matthieu, Aalto, Timo
Publikováno v:
3D Printing & Additive Manufacturing; Jun2024, Vol. 11 Issue 3, p1227-1234, 8p
Autor:
Pagani, Mattia, Morrison, Blair, Zhang, Yanbing, Casas-Bedoya, Alvaro, Aalto, Timo, Harjanne, Mikko, Kapulainen, Markku, Eggleton, Benjamin J., Marpaung, David
Instantaneous frequency measurement (IFM) of microwave signals is a fundamental functionality for applications ranging from electronic warfare to biomedical technology. Photonic techniques, and nonlinear optical interactions in particular, have the p
Externí odkaz:
http://arxiv.org/abs/1506.04261
Publikováno v:
EPJ Web of Conferences, Vol 287, p 01010 (2023)
We propose a novel polarization rotator concept using two-dimensional (2D) anisotropic materials, such as molybdenum trioxide, on top of 3µm silicon waveguides. The in-plane anisotropic behaviour of 500 nm thick MoO3 flake is analysed and confirmed
Externí odkaz:
https://doaj.org/article/b9fe56280178405db1a077482f4dbdeb
Autor:
Muntaha Sidra Tul, Hokkanen Ari, Harjanne Mikko, Cherchi Matteo, Roussey Matthieu, Aalto Timo
Publikováno v:
EPJ Web of Conferences, Vol 287, p 01019 (2023)
In this paper, we have demonstrated the beam steering experiments with the help of our optical phased array devices. The lateral beam steering has been showed successfully with the wavelength through the tunable laser source. The number of output cha
Externí odkaz:
https://doaj.org/article/03457dc61bd644eea7616dd787db3f34