Safaisini, R.; Szczerba, K.; Haglund, E.; Westbergh, P.; Gustavsson, J.S.; Larsson, A.; Andrekson, P.A.: '20 Gbit/s error-free operation of 850 nm oxide-confined VCSELs beyond 1 km of multimode fibre', Electronics Letters, 2012, 48, (19), p. 1225-1227, DOI: 10.1049/el.2012.2306 IET Digital Library, https://digital-library.theiet.org/;jsessionid=1jks0x2abw285.x-iet-live-01content/journals/10.1049/el.2012.2306