Quantum-dot (QD) nanolasers integrated on a silicon photonic circuit are demonstrated for the first time. QD nanolasers based on one-dimensional photonic crystal nanocavities containing InAs/GaAs QDs are integrated on CMOS-processed silicon waveguides cladded by silicon dioxide. We employed transfer-printing, whereby the three-dimensional stack of photonic nanostructures is assembled in a simple pick-and-place manner. Lasing operation and waveguide-coupling of an assembled single nanolaser are confirmed through micro-photoluminescence spectroscopy. Furthermore, by repetitive transfer-printing, two QD nanolasers integrated onto a single silicon waveguide are demonstrated, opening a path to develop compact light sources potentially applicable for wavelength division multiplexing.
@article{arxiv.1803.11552,
title = {Transfer-printed quantum-dot nanolasers on a silicon photonic circuit},
author = {A. Osada and Y. Ota and R. Katsumi and K. Watanabe and S. Iwamoto and Y. Arakawa},
journal= {arXiv preprint arXiv:1803.11552},
year = {2018}
}