Visser, T. D.T. D.VisserBlok, H.H.BlokDeMeulenaere, BartBartDeMeulenaereLenstra, D.D.Lenstra2021-09-302021-09-301997https://imec-publications.be/handle/20.500.12860/2294Confinement factors and gain in optical amplifiersJournal article