Would such an integrated nanophotonic light source substitute for quantum dots, for cavity QED QC and sensors?

"Electrons turn piece of wire into laser-like light source" (2022) https://news.ycombinator.com/item?id=33490730 :

"Coherent Surface Plasmon Polariton Amplification via Free Electron Pumping" (2022) https://doi.org/10.21203/rs.3.rs-1572967/v1