Lasing in a Hybrid Rare-Earth Silicon Microdisk (Laser Photonics Rev. 16(1)/2022)

Silicon Lasers

In article number 2100348, Khadijeh Miarabbas Kiani and co-workers show that optical gain and lasing in an ultra-compact hybrid rare-earth silicon microdisk resonator emits at 1.9 µm, with an internal slope efficiency of 60% and >1 mW on-chip output power. The thulium laser is fabricated using low-temperature, and straightforward wafer-scale post-processing steps, which opens the potential for large-scale integration of monolithic 2-µm-band amplifiers and light sources within advanced silicon photonic microsystems.