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Padberg L, Quiring V, Bocchini A, et al. DC Ionic Conductivity in KTP and Its Isomorphs: Properties, Methods for Suppression, and Its Connection to Gray Tracking. Crystals. 2022;12:1359. doi:10.3390/cryst12101359

Prasannan N, Sperling J, Brecht B, Silberhorn C. Direct Measurement of Higher-Order Nonlinear Polarization Squeezing. Physical Review Letters. 2022;129(26). doi:10.1103/physrevlett.129.263601

Held P, Engelkemeier M, De S, Barkhofen S, Sperling J, Silberhorn C. Driven Gaussian quantum walks. Physical Review A. 2022;105(4). doi:10.1103/physreva.105.042210

Santandrea M, Stefszky M, Silberhorn C. General analytic theory of classical collinear three-wave mixing in a monolithic cavity. Journal of Optics. Published online 2021. doi:10.1088/2040-8986/ac0b90

De S, Gil López J, Brecht B, et al. Effects of coherence on temporal resolution. Physical Review Research. 2021;3(3). doi:10.1103/physrevresearch.3.033082

Ansari V, Brecht B, Gil-Lopez J, et al. Achieving the Ultimate Quantum Timing Resolution. PRX Quantum. 2021;2. doi:10.1103/prxquantum.2.010301

Roman-Rodriguez V, Brecht B, Srinivasan K, et al. Continuous variable multimode quantum states via symmetric group velocity matching. New Journal of Physics. 2021;23. doi:10.1088/1367-2630/abef96

Padberg L, Eigner C, Santandrea M, Silberhorn C. Production of waveguides made of materials from the KTP family. Published online 2021.

Ferreri A, Santandrea M, Stefszky M, et al. Multimode integrated SU(1,1) interferometer. In: Conference on Lasers and Electro-Optics. Optica Publishing Group; 2021. doi:10.1364/cleo_qels.2021.ftu1n.6

Pelucchi E, Fagas G, Aharonovich I, et al. The potential and global outlook of integrated photonics for quantum technologies. Nature Reviews Physics. 2021;4(3):194-208. doi:10.1038/s42254-021-00398-z

Gil López J, Santandrea M, Roland G, et al. Improved non-linear devices for quantum applications. New Journal of Physics. Published online 2021. doi:10.1088/1367-2630/ac09fd

Gil López J, Teo YS, De S, et al. Universal compressive tomography in the time-frequency domain. Optica. Published online 2021. doi:10.1364/optica.427645

Luo KH, Santandrea M, Stefszky M, et al. Quantum optical coherence: From linear to nonlinear interferometers. Physical Review A. Published online 2021. doi:10.1103/physreva.104.043707

Bagrets D, Kim KW, Barkhofen S, et al. Probing the topological Anderson transition with quantum walks. Physical Review Research. Published online 2021. doi:10.1103/physrevresearch.3.023183

Geraldi A, De S, Laneve A, et al. Transient subdiffusion via disordered quantum walks. Physical Review Research. Published online 2021. doi:10.1103/physrevresearch.3.023052

Tiedau J, Engelkemeier M, Brecht B, Sperling J, Silberhorn C. Statistical Benchmarking of Scalable Photonic Quantum Systems. Physical Review Letters. 2021;126. doi:10.1103/physrevlett.126.023601

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

Brockmeier J, Mackwitz PWM, Rüsing M, et al. Non-Invasive Visualization of Ferroelectric Domain Structures on the Non-Polar y-Surface of KTiOPO4 via Raman Imaging. Crystals. Published online 2021. doi:10.3390/cryst11091086

Santandrea M, Stefszky M, Roeland G, Silberhorn C. Interferometric method for determining the losses of spatially multi-mode nonlinear waveguides based on second harmonic generation. Optics Express. Published online 2020. doi:10.1364/oe.380788

Stefszky M, Santandrea M, vom Bruch F, et al. Waveguide resonator with an integrated phase modulator for second harmonic generation. Optics Express. Published online 2020. doi:10.1364/oe.412824

Tiedau J, Schapeler T, Anant V, Fedder H, Silberhorn C, Bartley T. Single-channel electronic readout of a multipixel superconducting nanowire single photon detector. Optics Express. 2020;28(4). doi:10.1364/oe.383111

Santandrea M, Stefszky M, Roeland G, Silberhorn C. Interferometric method for determining the losses of spatially multi-mode nonlinear waveguides based on second harmonic generation. Optics Express. 2020;28(4). doi:10.1364/oe.380788

Mukamel S, Freyberger M, Schleich W, et al. Roadmap on quantum light spectroscopy. Journal of Physics B: Atomic, Molecular and Optical Physics. 2020;53(7). doi:10.1088/1361-6455/ab69a8

Meyer-Scott E, Silberhorn C, Migdall A. Single-photon sources: Approaching the ideal through         10.1063/5.0003320__multiplexing. Review of Scientific Instruments. 2020;91(4). doi:10.1063/5.0003320

Dirmeier T, Tiedau J, Khan I, et al. Distillation of squeezing using an engineered pulsed parametric down-conversion source. Optics Express. 2020;28(21). doi:10.1364/oe.402178

Eigner C, Padberg L, Santandrea M, Herrmann H, Brecht B, Silberhorn C. Spatially single mode photon pair source at 800 nm in periodically poled Rubidium exchanged KTP waveguides. Optics Express. 2020;28(22). doi:10.1364/oe.399483

Ferreri A, Ansari V, Brecht B, Silberhorn C, Sharapova PR. Spatial entanglement and state engineering via four-photon Hong–Ou–Mandel interference. Quantum Science and Technology. 2020;5(4). doi:10.1088/2058-9565/abb411

Sperling J, Phillips DS, Bulmer JFF, et al. Detector-Agnostic Phase-Space Distributions. Physical Review Letters. Published online 2020. doi:10.1103/physrevlett.124.013605

Engelkemeier M, Lorz L, De S, et al. Quantum photonics with active feedback loops. Physical Review A. 2020;102. doi:10.1103/physreva.102.023712

Nitsche T, De S, Barkhofen S, et al. Local Versus Global Two-Photon Interference in Quantum Networks. Physical Review Letters. Published online 2020. doi:10.1103/physrevlett.125.213604

Schmidt F, Kozub AL, Biktagirov T, et al. Free and defect-bound (bi)polarons in LiNbO3: Atomic structure and spectroscopic signatures from ab initio calculations. Physical Review Research. 2020;2(4). doi:10.1103/PhysRevResearch.2.043002

Bocchini A, Eigner C, Silberhorn C, Schmidt WG, Gerstmann U. Understanding gray track formation in KTP: Ti^3+ centers studied from first principles. Phys Rev Materials. 2020;4:124402. doi:10.1103/PhysRevMaterials.4.124402

Padberg L, Santandrea M, Rüsing M, et al. Characterisation of width-dependent diffusion dynamics in rubidium-exchanged KTP waveguides. Optics Express. Published online 2020. doi:10.1364/oe.397074

Massaro M, Meyer-Scott E, Montaut N, Herrmann H, Silberhorn C. Improving SPDC single-photon sources via extended heralding and feed-forward control. New Journal of Physics. Published online 2019. doi:10.1088/1367-2630/ab1ec3

Santandrea M, Stefszky M, Roeland G, Silberhorn C. Characterisation of fabrication inhomogeneities in Ti:LiNbO3 waveguides. New Journal of Physics. Published online 2019. doi:10.1088/1367-2630/ab5cb5

Santandrea M, Stefszky M, Ansari V, Silberhorn C. Fabrication limits of waveguides in nonlinear crystals and their impact on quantum optics applications. New Journal of Physics. Published online 2019. doi:10.1088/1367-2630/aaff13

Luo K-H, Ansari V, Massaro M, et al. Counter-propagating photon pair generation in a nonlinear waveguide. Optics Express. Published online 2019. doi:10.1364/oe.378789

Meyer-Scott E, Prasannan N, Montaut N, et al. Engineering integrated photon pair sources and multiplexed detectors (Conference Presentation). In: Hasan ZU, Hemmer PR, Migdall AL, eds. Advances in Photonics of Quantum Computing, Memory, and Communication XII. ; 2019. doi:10.1117/12.2513753

Padberg L, Eigner C, Santandrea M, Silberhorn C. Herstellung von Wellenleitern aus Materialien der KTP-Familie. Published online 2019.

Xie Z, Luo KH, Chang KC, et al. Efficient C-band single-photon upconversion with chip-scale Ti-indiffused pp-LiNbO<sub>3</sub> waveguides. Applied Optics. 2019;58(22). doi:10.1364/ao.58.005910

Faruque II, Sinclair GF, Bonneau D, et al. Estimating the Indistinguishability of Heralded Single Photons Using Second-Order Correlation. Physical Review Applied. 2019;12(5). doi:10.1103/physrevapplied.12.054029

Ferreri A, Ansari V, Silberhorn C, Sharapova PR. Temporally multimode four-photon Hong-Ou-Mandel interference. Physical Review A. 2019;100(5). doi:10.1103/physreva.100.053829

Sperling J, Perez-Leija A, Busch K, Silberhorn C. Mode-independent quantum entanglement for light. Physical Review A. Published online 2019. doi:10.1103/physreva.100.062129

Sperling J, Meyer-Scott E, Barkhofen S, Brecht B, Silberhorn C. Experimental Reconstruction of Entanglement Quasiprobabilities. Physical Review Letters. Published online 2019. doi:10.1103/physrevlett.122.053602

Meyer-Scott E, Prasannan N, Montaut N, et al. Engineering integrated sources of entangled photon pairs. In: Frontiers in Optics / Laser Science. ; 2018. doi:10.1364/ls.2018.lm3b.1

Meyer-Scott E, Prasannan N, Montaut N, et al. Engineering integrated sources of entangled photon pairs. In: Frontiers in Optics / Laser Science. ; 2018. doi:10.1364/ls.2018.lm3b.1

Meyer-Scott E, Prasannan N, Eigner C, et al. High-performance source of spectrally pure, polarization entangled photon pairs based on hybrid integrated-bulk optics. Optics Express. Published online 2018. doi:10.1364/oe.26.032475

Stefszky M, Ricken R, Eigner C, Quiring V, Herrmann H, Silberhorn C. High-power waveguide resonator second harmonic device with external conversion efficiency up to 75%. Journal of Optics. Published online 2018. doi:10.1088/2040-8986/aac1d5

Montaut N, Magaña-Loaiza OS, Bartley T, et al. Compressive characterization of telecom photon pairs in the spatial and spectral degrees of freedom. Optica. 2018;5(11). doi:10.1364/optica.5.001418