Zn-Diffusion/Oxide-Relief 940 nm VCSELs with Excellent High-Temperature Performance for 50 Gbit/sec Transmission. - Kai-Lun Chi; Zheng-Ting Xie; Mikel Agustin; J.-R. Kropp; Nikolay N. Ledentsov; Kuo-Feng Tseng; Ling-Gang Yang; Jin-Wei Shi (OFC, 2018)