[1] N. Sangouard et al., “Faithful entanglement swapping based on sum-frequency generation”, Phys. Rev. Lett. 106, 120403 (2011).
[2] T. Guerreiro et al., “Nonlinear interaction between single photons”, Phys. Rev. Lett. 113, 173601 (2014).
[3] K. Wakui et al., “Ultra-high-rate non-classical light source with 50 GHz-repetition-rate mode-locked pump pulses and multiplexed single-photon detectors”, Opt. Exp. 28, 22399 (2020).
[4] Y. Tsujimoto et al., “Ultra-fast Hong-Ou-Mandel interferometry via temporal filtering,” Opt. Exp. 29, 37150 (2021).
[5] T. Yamashita et al., “Superconducting nanowire single-photon detectors with non-periodic dielectric multilayers”, Sci. Rep. 6, 35240 (2016).
[6] S. Miki et al., “Stable, high-performance operation of a fiber-coupled superconducting nanowire avalanche photon detector”, Opt. Exp. 25, 6796 (2017).
[7] T. Kishimoto et al., “Highly efficient phase-sensitive parametric gain in periodically poled LiNbO3 ridge waveguide”, Opt. Lett. 41, 1905 (2016).