Micro-Transfer-Printed III-V-on-Si Laser with 120nm tuning range

Many integrated photonics applications require miniaturized on-chip sources over a wide wavelength range, such as coherent optical communication and spectroscopy. In this work, we demonstrate for the first time a 120nm tuning range (1495nm-1615nm) widely-tunable III-V-on-Si laser realized using micro-transfer printing technology.