The 2021 report on silicon photonics examines the technology's evolution and its applications in various sectors like optical communication, healthcare, and consumer electronics, emphasizing their market forecasts and trends. It highlights significant anticipated growth in consumer health applications, particularly through smartwatches and other devices, alongside robust demand for datacenter transceivers. Additionally, the report provides in-depth methodologies, author biographies, and an overview of companies involved in silicon photonics.