  Integrated photonics is increasing in importance for compact, robust, and
scalable enabling quantum technologies. This is particularly interesting for
developing quantum communication networks, where resources need to be deployed
in the field. We exploit photonic chip-based $ \rm Si_3 N_4$ ring
microresonators for the generation of photon pairs with low-loss, high-noise
suppression and coincidence rates of $80\times 10^3\,$s$^{-1}$. A simple
photonic noise characterisation technique is presented that distinguishes
linear and nonlinear contributions that is useful for system design and
optimisation. We then demonstrate an all-fibre $750\,$MHz clock-rate sequential
Time-Bin entanglement scheme with raw interference visibilities $>\,98\,\%$.
