M. Zahn et al., “Equivalent-circuit model that quantitatively describes domain-wall conductivity in ferroelectric lithium ,”10.1103/physrevapplied.21.024007__Physical Review Applied, vol. 21, no. 2, Art. no. 024007, 2024, doi:10.1103/physrevapplied.21.024007 .

J. Babai-Hemati, F. vom Bruch, H. Herrmann, and C. Silberhorn, “Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters,”10.1364/oe.510319__Optics Express, 2024, doi:10.1364/oe.510319 .

F. Pegoraro, P. Held, S. Barkhofen, B. Brecht, and C. Silberhorn, “Dynamic conditioning of two particle discrete-time quantum walks,”10.1088/1402-4896/acbcaa__Physica Scripta, vol. 98, no. 3, Art. no. 034005, 2023, doi:10.1088/1402-4896/acbcaa .

L. Serino et al., “Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States,”10.1103/prxquantum.4.020306__PRX Quantum, vol. 4, no. 2, Art. no. 020306, 2023, doi:10.1103/prxquantum.4.020306 .

S. Kruse et al., “A Pulsed Lidar System With Ultimate Quantum Range Accuracy,”10.1109/lpt.2023.3277515__IEEE Photonics Technology Letters, vol. 35, no. 14, pp. 769–772, 2023, doi:10.1109/lpt.2023.3277515 .

S. Babel et al., “Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler,”10.1364/oe.484126__Optics Express, vol. 31, no. 14, Art. no. 23140, 2023, doi:10.1364/oe.484126 .

R. Domeneguetti et al., “Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing,”10.1364/ol.486654__Optics Letters, vol. 48, no. 11, Art. no. 2999, 2023, doi:10.1364/ol.486654 .

M. Stefszky et al., “Lithium niobate waveguide squeezer with integrated cavity length stabilisation for network applications,”10.1364/oe.498423__Optics Express, vol. 31, no. 21, Art. no. 34903, 2023, doi:10.1364/oe.498423 .

E. Meyer-Scott et al., “Scalable Generation of Multiphoton Entangled States by Active Feed-Forward and Multiplexing,”10.1103/physrevlett.129.150501__Physical Review Letters, vol. 129, no. 15, Art. no. 150501, 2022, doi:10.1103/physrevlett.129.150501 .

T. Meier et al., “Two-Mode Photon-Number Correlations Created by Measurement-Induced Nonlinearity,”10.1364/CLEO_AT.2022.JTu3A.17__in Conference on Lasers and Electro-Optics: Applications and Technology, San Jose, California United States, 2022, p. JTu3A. 17, doi:10.1364/CLEO_AT.2022.JTu3A.17 .

L. Padberg et al., “DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking,”10.3390/cryst12101359__Crystals, vol. 12, p. 1359, 2022, doi:10.3390/cryst12101359 .

N. Prasannan, J. Sperling, B. Brecht, and C. Silberhorn, “Direct Measurement of Higher-Order Nonlinear Polarization Squeezing,”10.1103/physrevlett.129.263601__Physical Review Letters, vol. 129, no. 26, Art. no. 263601, 2022, doi:10.1103/physrevlett.129.263601 .

P. Held, M. Engelkemeier, S. De, S. Barkhofen, J. Sperling, and C. Silberhorn, “Driven Gaussian quantum walks,”10.1103/physreva.105.042210__Physical Review A, vol. 105, no. 4, Art. no. 042210, 2022, doi:10.1103/physreva.105.042210 .

M. Santandrea, M. Stefszky, and C. Silberhorn, “General analytic theory of classical collinear three-wave mixing in a monolithic cavity,”10.1088/2040-8986/ac0b90__Journal of Optics, Art. no. 085803, 2021, doi:10.1088/2040-8986/ac0b90 .

S. De et al., “Effects of coherence on temporal resolution,”10.1103/physrevresearch.3.033082__Physical Review Research, vol. 3, no. 3, Art. no. 033082, 2021, doi:10.1103/physrevresearch.3.033082 .

V. Ansari et al., “Achieving the Ultimate Quantum Timing Resolution,”10.1103/prxquantum.2.010301__PRX Quantum, vol. 2, Art. no. 010301, 2021, doi:10.1103/prxquantum.2.010301 .

V. Roman-Rodriguez et al., “Continuous variable multimode quantum states via symmetric group velocity matching,”10.1088/1367-2630/abef96__New Journal of Physics, vol. 23, Art. no. 043012, 2021, doi:10.1088/1367-2630/abef96 .

L. Padberg, C. Eigner, M. Santandrea, and C. Silberhorn, “Production of waveguides made of materials from the KTP family.” 2021.

A. Ferreri et al., “Multimode integrated SU(1,1) interferometer,”10.1364/cleo_qels.2021.ftu1n.6__2021, doi:10.1364/cleo_qels.2021.ftu1n.6 .

E. Pelucchi et al., “The potential and global outlook of integrated photonics for quantum technologies,”10.1038/s42254-021-00398-z__Nature Reviews Physics, vol. 4, no. 3, pp. 194–208, 2021, doi:10.1038/s42254-021-00398-z .

J. Gil López et al., “Improved non-linear devices for quantum applications,”10.1088/1367-2630/ac09fd__New Journal of Physics, Art. no. 063082, 2021, doi:10.1088/1367-2630/ac09fd .

J. Gil López et al., “Universal compressive tomography in the time-frequency domain,”10.1364/optica.427645__Optica, Art. no. 1296, 2021, doi:10.1364/optica.427645 .

K. H. Luo et al., “Quantum optical coherence: From linear to nonlinear interferometers,”10.1103/physreva.104.043707__Physical Review A, 2021, doi:10.1103/physreva.104.043707 .

D. Bagrets et al., “Probing the topological Anderson transition with quantum walks,”10.1103/physrevresearch.3.023183__Physical Review Research, 2021, doi:10.1103/physrevresearch.3.023183 .

A. Geraldi et al., “Transient subdiffusion via disordered quantum walks,”10.1103/physrevresearch.3.023052__Physical Review Research, 2021, doi:10.1103/physrevresearch.3.023052 .

J. Tiedau, M. Engelkemeier, B. Brecht, J. Sperling, and C. Silberhorn, “Statistical Benchmarking of Scalable Photonic Quantum Systems,”10.1103/physrevlett.126.023601__Physical Review Letters, vol. 126, Art. no. 023601, 2021, doi:10.1103/physrevlett.126.023601 .

N. Prasannan, S. De, S. Barkhofen, B. Brecht, C. Silberhorn, and J. Sperling, “Experimental entanglement characterization of two-rebit states,”10.1103/physreva.103.l040402__Physical Review A, vol. 103, 2021, doi:10.1103/physreva.103.l040402 .

J. Brockmeier et al., “Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging,”10.3390/cryst11091086__Crystals, Art. no. 1086, 2021, doi:10.3390/cryst11091086 .

M. Santandrea, M. Stefszky, G. Roeland, and C. Silberhorn, “Interferometric method for determining the losses of spatially multi-mode nonlinear waveguides based on second harmonic generation,”10.1364/oe.380788__Optics Express, Art. no. 5507, 2020, doi:10.1364/oe.380788 .

M. Stefszky et al., “Waveguide resonator with an integrated phase modulator for second harmonic generation,”10.1364/oe.412824__Optics Express, Art. no. 1991, 2020, doi:10.1364/oe.412824 .

J. Tiedau, T. Schapeler, V. Anant, H. Fedder, C. Silberhorn, and T. Bartley, “Single-channel electronic readout of a multipixel superconducting nanowire single photon detector,”10.1364/oe.383111__Optics Express, vol. 28, no. 4, Art. no. 5528, 2020, doi:10.1364/oe.383111 .

M. Santandrea, M. Stefszky, G. Roeland, and C. Silberhorn, “Interferometric method for determining the losses of spatially multi-mode nonlinear waveguides based on second harmonic generation.,”10.1364/oe.380788__Optics Express, vol. 28, no. 4, Art. no. 5507, 2020, doi:10.1364/oe.380788 .

S. Mukamel et al., “Roadmap on quantum light spectroscopy,”10.1088/1361-6455/ab69a8__Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 53, no. 7, Art. no. 072002, 2020, doi:10.1088/1361-6455/ab69a8 .

E. Meyer-Scott, C. Silberhorn, and A. Migdall, “Single-photon sources: Approaching the ideal through         10.1063/5.0003320__multiplexing,”10.1063/5.0003320__Review of Scientific Instruments, vol. 91, no. 4, Art. no. 041101, 2020, doi:10.1063/5.0003320 .

T. Dirmeier et al., “Distillation of squeezing using an engineered pulsed parametric down-conversion source,”10.1364/oe.402178__Optics Express, vol. 28, no. 21, Art. no. 30784, 2020, doi:10.1364/oe.402178 .

C. Eigner, L. Padberg, M. Santandrea, H. Herrmann, B. Brecht, and C. Silberhorn, “Spatially single mode photon pair source at 800 nm in periodically poled Rubidium exchanged KTP waveguides,”10.1364/oe.399483__Optics Express, vol. 28, no. 22, Art. no. 32925–32935, 2020, doi:10.1364/oe.399483 .

A. Ferreri, V. Ansari, B. Brecht, C. Silberhorn, and P. R. Sharapova, “Spatial entanglement and state engineering via four-photon Hong–Ou–Mandel interference,”10.1088/2058-9565/abb411__Quantum Science and Technology, vol. 5, no. 4, Art. no. 045020, 2020, doi:10.1088/2058-9565/abb411 .

J. Sperling et al., “Detector-Agnostic Phase-Space Distributions,”10.1103/physrevlett.124.013605__Physical Review Letters, 2020, doi:10.1103/physrevlett.124.013605 .

M. Engelkemeier et al., “Quantum photonics with active feedback loops,”10.1103/physreva.102.023712__Physical Review A, vol. 102, Art. no. 023712, 2020, doi:10.1103/physreva.102.023712 .

T. Nitsche et al., “Local Versus Global Two-Photon Interference in Quantum Networks,”10.1103/physrevlett.125.213604__Physical Review Letters, 2020, doi:10.1103/physrevlett.125.213604 .

F. Schmidt et al., “Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations,”10.1103/PhysRevResearch.2.043002__Physical Review Research, vol. 2, no. 4, Art. no. 043002, 2020, doi:10.1103/PhysRevResearch.2.043002 .

A. Bocchini, C. Eigner, C. Silberhorn, W. G. Schmidt, and U. Gerstmann, “Understanding gray track formation in KTP: Ti^3+ centers studied from first principles,”10.1103/PhysRevMaterials.4.124402__Phys. Rev. Materials, vol. 4, p. 124402, 2020, doi:10.1103/PhysRevMaterials.4.124402 .

L. Padberg et al., “Characterisation of width-dependent diffusion dynamics in rubidium-exchanged KTP waveguides,”10.1364/oe.397074__Optics Express, Art. no. 24353, 2020, doi:10.1364/oe.397074 .

M. Massaro, E. Meyer-Scott, N. Montaut, H. Herrmann, and C. Silberhorn, “Improving SPDC single-photon sources via extended heralding and feed-forward control,”10.1088/1367-2630/ab1ec3__New Journal of Physics, Art. no. 053038, 2019, doi:10.1088/1367-2630/ab1ec3 .

M. Santandrea, M. Stefszky, G. Roeland, and C. Silberhorn, “Characterisation of fabrication inhomogeneities in Ti:LiNbO3 waveguides,”10.1088/1367-2630/ab5cb5__New Journal of Physics, Art. no. 123005, 2019, doi:10.1088/1367-2630/ab5cb5 .

M. Santandrea, M. Stefszky, V. Ansari, and C. Silberhorn, “Fabrication limits of waveguides in nonlinear crystals and their impact on quantum optics applications,”10.1088/1367-2630/aaff13__New Journal of Physics, Art. no. 033038, 2019, doi:10.1088/1367-2630/aaff13 .

K.-H. Luo et al., “Counter-propagating photon pair generation in a nonlinear waveguide,”10.1364/oe.378789__Optics Express, Art. no. 3215, 2019, doi:10.1364/oe.378789 .

E. Meyer-Scott et al., “Engineering integrated photon pair sources and multiplexed detectors (Conference Presentation),”10.1117/12.2513753__in Advances in Photonics of Quantum Computing, Memory, and Communication XII, 2019, doi:10.1117/12.2513753 .

L. Padberg, C. Eigner, M. Santandrea, and C. Silberhorn, “Herstellung von Wellenleitern aus Materialien der KTP-Familie.” 2019.

Z. Xie et al., “Efficient C-band single-photon upconversion with chip-scale Ti-indiffused pp-LiNbO<sub>3</sub> waveguides,”10.1364/ao.58.005910__Applied Optics, vol. 58, no. 22, Art. no. 5910, 2019, doi:10.1364/ao.58.005910 .