Based on application, the VCSELs market is segmented into sensing, data communication, industrial heating, laser printing, LiDAR, pulse oximetry, and other applications. The sensing segment accounted for the largest share of the overall VCSELs market in 2020. The sensing segment has been further segmented into 3D sensing, gas sensing, and optical mice. 3D sensing is extensively used in consumer electronics and automotive sectors. Under consumer electronics, VCSELs are used in smartphones for facial recognition, gesture recognition etc. The automotive industry uses VCSELs for in-cabin driver and passenger monitoring, driver assistance, and object recognition. Various automotive companies have started adopting this technology for measuring distances between vehicles and objects. Many technology companies combine 3D sensors, software, and algorithms to enhance the end-user experience. VCSELs are used for indoor navigation, collision avoidance, iris scanning, tracking, gesture recognition, surveillance of target zones, and enhancing 3D photography.