Author Affiliations

Andres Garcia-Ruiz,^a,* Hugo F. Martins,^a Regina Magalhães,^a João M. B. Pereira,^b,c Oleksandr Tarasenko,^b Lars Norin,^b Walter Margulis,^b,c Sonia Martin-Lopez,^a and Miguel Gonzalez-Herraez^a

^aDept. of Electronics, University of Alcalá, 28805, Alcalá de Henares (Madrid), Spain

^bDept. of Fiber Photonics, RISE Acreo AB, Electrum 236, 16440, Kista, Sweden

^cDept. of App. Physics, Royal Inst. of Technology, Roslagstullsbacken 21, 10691 Stockholm, Sweden

^*Corresponding author: andres.garciaruiz@uah.es