Photons as information carriers are benefited from the advantages of low decoherence, diverse degrees of freedom, and fast information delivery. In my work, self-assembledInAsquantum dots (QDs) are adopted as quantum emitters with assist from planar photonic nanostructures to tailor the light-matter interaction and enhance emitted photons collection. To perform photonic quantum computing, these photon sources are required to interface the advanced photonic integrated circuits (PICs). In a hybrid approach utilizing chip-to-chip connections to construct a multi-chip photonic processor, a deterministic single-photon source is utilized in conjunction with a programmable silicon-nitride integrated circuit. By combining state-of-the-art QD photon sources with the scalability of CMOS-compatible PICs inSiN, this platform shows great promise for advancing photonic quantum technologies.