Integrated Lasers on Silicon at Communication Wavelength: A Progress Review (Advanced Optical Materials 23/2022)

Silicon photonics has developed as a mature technology for communications, while laser integration on silicon remains challenging since silicon is an indirect bandgap material. In article number 2201008, Nanxi Li and co-workers present a comprehensive review on the recent advances of lasers integrated on silicon with different gain materials including III–V semiconductors, germanium/germanium tin, silicon with Raman effect, and rare-earth-doped thin film. Also, the future outlook for integrated lasers on silicon is included. The review provides valuable reference for readers interested in lasers and integrated photonics.