Presently electrical interfaces at 56Gbaud and data rates of 112Gb/s are being deployed with the link lengths up to 50cm on board and up to 2m in cable versions. To extend the distances up to and beyond 100m, needed for the installed base served by multimode fiber a new generation of vertical-cavity surface-emitting lasers (VCSELs) is necessary. VI Systems addresses VCSELs with reduced spectral which allow to maintain transmission distance over multimode fiber reaching 1-2.5 km at 50Gbaud. VI Systems highlights operation performance of the most recent >30 GHz VCSELs emphasizing the role of the spectral width and high bandwidth on both extended reach transmission and back-to-back transceiver performance. Using SM VCSEL packaged with the new generation of 106 Gb/s PAM4 transceiver electronics from large US based IC manufacturer, TDECQ values of only 1.5dB are reached for single mode VCSELs, while 850nm and 910nm multimode VCSELs demonstrate TDECQ of only ~2.1dB applying the same driver and receiver combinations.
Join at us at the Photonics West 2021 conference from March 6-11 in the United States in San Francisco, CA.