On‐Chip Integrated Quantum‐Dot–Silicon‐Nitride Microdisk Lasers

• DOI: 10.1002/adma.201604866
• Publication Date: 2017-02-15T09:12:47Z
• Authors: Weiqiang Xie; Thilo Stöferle; Gabriele Rainò; Tangi Aubert; Suzanne Bisschop; Yunpeng Zhu; Rainer F. Mahrt; Pieter Geiregat; Edouard Brainis; Zeger Hens; Dries Van Thourhout
• Keywords: Waveguide

Hybrid SiN-QD microlasers coupled to a passive SiN output waveguide with 7{\mu}m diameter and record low threshold density of 27 {\mu}J cm-2 are demonstrated. A new design unique processing scheme starting from SiN/QD/SiN stacks offer long term stability facilitate in depth laser characterization. This approach opens up paths for optical communication, lab-on-a-chip, gas sensing and, potentially, on-chip cavity quantum electrodynamics optics.