Advanced Single-Mode 850 nm VCSELs for Record NRZ and PAM4 Data Rate on SMF-28 Fiber up to 1 km

Temperature-stable single-mode 850 nm VCSELs with integrated mode-selective filters are developed and demonstrated record NRZ 38 Gb/s (25 °C), NRZ 32 Gb/s (70 °C) and PAM4 32 GBaud (25 °C) on 1 km standard single-mode fiber (SMF-28).