The optoelectronics industry has experienced tremendous growth over the past two decades and technologically it’s never been more dynamic. In the early 2000s, the industry saw a surge in demand for laser diodes, primarily for high-speed optical networks. However, following the dot-com crash in 2001, the market shifted focus towards photovoltaic (PV) cells, image sensors, and LED devices, which became major drivers throughout the decade. As the 2010s unfolded, OLED technology and Quantum Dots emerged as groundbreaking advancements in the display industry, which significantly influenced television and mobile device screen designs. In recent years, technologies such as Micro-LED, 3D sensing and imaging, and vertical-cavity surface-emitting lasers (VCSELs) have dominated industry discussions. Silicon photonics, which integrates optical components into semiconductor chips, is another field experiencing rapid development, particularly in data centers and high-performance computing applications. Today, optoelectronic technologies have become essential in various applications, integrating into intelligent next-generation systems. One of the most notable advancements is the use of VCSEL technology in Apple’s iPhone X, which enabled 3D facial recognition through Face ID. This innovation sparked significant interest from other smartphone manufacturers, leading to the widespread adoption of 3D sensing in flagship devices from Xiaomi, Oppo, Huawei, Vivo, and Samsung. The global optoelectronics industry is already a multi-billion-dollar market at the component level, and its growth trajectory remains strong. Established technologies like LED lighting and PV cells continue to expand their penetration rates, while emerging innovations such as 3D sensing and micro-LEDs are set to disrupt the industry further. VCSELs, for instance, have existed for over 20 years, primarily used for short-distance data communications in data centers. However, Apple’s integration of VCSELs into its iPhones for 3D sensing has propelled the technology into the mainstream.