Zhejiang University, China (Lead Editor)
Hewlett Packard Enterprise, USA
National Research Council of Canada, Canada
On the Cover of the virtual issue
Heterogeneous integration enables high-performance active and passive silicon nitride photonic integrated circuits. Narrow-linewidth lasers and laser soliton microcombs based on silicon nitride are projected to be critical in applications including optical interconnects, sensing, microwave photonics, metrology, and so on. See Chao Xiang et al., page A82.