This project will help demonstrate the feasibility of multi Gbps VCSEL-based serial and parallel optical fiber links for use in a space environment by evaluating the radiation response of key components. Vertical-cavity surface-emitting lasers (VCSELs) constitute an increasingly important alternative to edge-emitting laser diodes. VCSELs offer many advantages in fabrication and performance over conventional edge-emitting lasers where light is emitted on one or two edges of the chip. In. Vertical Cavity Surface Emitting Laser (VCSEL) technology has become an indispensable element in optical communication systems and optoelectronics due to its many advantages, and the unique characteristics of VCSELs, including vertical emission, high-speed operation, and low power consumption, have. There are both proton implant confined vertical cavity surface emitting lasers oxide confined VCSELs available commercially. An oxide confined VCSEL is desirable for 3. 3 V (as opposed to 5V) transceiver applications due to its higher slope efficiency and lower operating voltage compared to proton. The GN1848 is a quad 56GBd PAM4 VCSEL driver offering best-in-class performance and low cost for short-reach optical links BASEL, Switzerland at ECOC 2022, Sept. 19, 2022 – Semtech Corporation (Nasdaq: SMTC), a leading global supplier of high performance analog and mixed-signal semiconductors and.