Integrated CMOS-compatible Q-Switched-Mode-Locked Laser at 1.9µm with On-Chip Artificial Saturable Absorber

We present a CMOS-compatible, Q-switched mode-locked integrated laser at 1.9µm with a compact footprint of 23.6×0.6×0.78mm, a Q-switched rate of 720kHz, a mode-locked rate of 1.2GHz, and pulse durations of 215fs.