Author Affiliations

Anupamaa Rampur,¹ Dirk-Mathys Spangenberg,¹ Grzegorz Stępniewski,^2,3 Dominik Dobrakowski,² Karol Tarnowski,⁴ Karolina Stefańska,⁴ Adam Paździor,⁵ Paweł Mergo,⁵ Tadeusz Martynkien,⁴ Thomas Feurer,¹ Mariusz Klimczak,² and Alexander M. Heidt¹

¹Institute of Applied Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland

²Faculty of Physics, University of Warsaw, Pasteura 5, 02-093 Warsaw, Poland

³Łukasiewicz Research Network - Institute of Microelectronics and Photonics, Al. Lotników 32/46, 02-668 Warsaw, Poland

⁴Department of Optics and Photonics, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland

⁵Laboratory of Optical Fiber Technology, Maria Curie-Sklodowska University, pl. M. Curie-Sklodowskiej 3, 20-031 Lublin, Poland