Improving P-Doped DBRs Operation at Cryogenic Temperatures: Investigating Different Mirror Geometry

Autor: Behzad Namvar, Topi Uusitalo, Heikki Virtanen, Mircea Guina, Jukka Viheriala

Publikováno v: IEEE Photonics Journal, Vol 16, Iss 4, Pp 1-9 (2024)

The use of vertical-cavity-surface-emitting lasers with ability to operate at cryogenic temperatures (Cryo-VCSELs) is a promising path to implement optical data links between superconducting processors maintained in cryogenic environments (4 K range)

Externí odkaz: https://doaj.org/article/322f34ebd4cf4162b285df87e60ab605

Widely tunable 2 $\mu$m hybrid laser using GaSb semiconductor optical amplifiers and Si3N4 photonics integrated reflector

Autor: Nouman Zia, Samu-Pekka Ojanen, Jukka Viheriala, Eero Koivusalo, Joonas Hilska, Heidi Tuorila, Mircea Guina

Tunable lasers emitting in the 2–3 µm wavelength range that are compatible with photonic integration platforms are of great interest for sensing applications. To this end, combining GaSb-based semiconductor gain chips with Si3N4 photonic integrate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70ff803d9aaa6430098fc062f653d87b
http://arxiv.org/abs/2211.02135

A path towards attojoule cryogenic communication

Autor: Matteo Cherchi, Emma Mykkänen, Antti Kemppinen, Kirsi Tappura, Joonas Govenius, Mika Prunnila, Giovanni Delrosso, Teemu Hakkarainen, Jukka Viheriala, Mario Castaneda, Mark Bieler, Stephan Steinhauer, Val Zwiller, Koepfli, Stefan M., Juerg Leuthold, Eva De Leo

Publikováno v: VTT Technical Research Centre of Finland-PURE
Cherchi, M, Mykkanen, E, Kemppinen, A, Tappura, K, Govenius, J, Prunnila, M, Delrosso, G, Hakkarainen, T, Viheriala, J, Castaneda, M, Bieler, M, Steinhauer, S, Zwiller, V, Koepfli, S M, Leuthold, J & De Leo, E 2022, A path towards attojoule cryogenic communication . in 2022 European Conference on Optical Communication, ECOC 2022 . IEEE Institute of Electrical and Electronic Engineers, 2022 European Conference on Optical Communication, ECOC 2022, Basel, Switzerland, 18/09/22 . < https://ieeexplore.ieee.org/document/9979547 >
Stefan M. Koepfli

Photonic integration technologies are key to scale-up superconducting quantum computers. Here, we identify suitable classical optical links to control and read out the qubits in cryostats and resolve the power dissipation issue of superconducting com

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::099bfa392e36b12683b6b3d1327f4ff4
https://cris.vtt.fi/en/publications/376a8aa0-33ff-412b-a9ea-f7c43385ffc7