Widely non-degenerate nonlinear frequency conversion in cryogenic titanium in-diffused lithium niobate waveguides
N.A. Lange, S. Lengeling, P. Mues, V. Quiring, W. Ridder, C. Eigner, H. Herrmann, C. Silberhorn, T. Bartley, Optics Express 33 (2025).

Harnessing temporal dispersion for integrated pump filtering in spontaneous heralded single-photon generation processes
J. Brockmeier, T. Schapeler, N.A. Lange, J.P. Höpker, H. Herrmann, C. Silberhorn, T. Bartley, New Journal of Physics (2025).

Photorefraction and in-situ optical cleaning in various types of LiNbO3 waveguides
M. Kirsch, C. Kießler, S. Lengeling, M. Stefszky, C. Eigner, H. Herrmann, C. Silberhorn, Optics &; Laser Technology 193 (2025).

Ultrabright, two-color photon pair source based on thin-film lithium niobate for bridging visible and telecom wavelengths
S. Babel, L. Bollmers, F. Roeder, W. Ridder, C. Golla, R. Köthemann, B. Reineke, H. Herrmann, B. Brecht, C. Eigner, L. Padberg, C. Silberhorn, Optics Express 33 (2025).

SPDC single-photon source in Ti-indiffused diced ridge LiNbO<sub>3</sub> waveguides
C. Kießler, M. Kirsch, S. Lengeling, H. Herrmann, C. Silberhorn, Optics Continuum 4 (2025).

Tailored second harmonic generation inTi-diffused PPLN waveguides usingmicro-heaters
J. Babai-Hemati, F. vom Bruch, H. Herrmann, C. Silberhorn, Optics Express (2024).

Pyroelectric influence on lithium niobate during the thermal transition for cryogenic integrated photonics
F. Thiele, T. Hummel, N.A. Lange, F. Dreher, M. Protte, F. vom Bruch, S. Lengeling, H. Herrmann, C. Eigner, C. Silberhorn, T. Bartley, Materials for Quantum Technology 4 (2024).

Optical imaging of ferroelectric domains in periodically poled lithium niobate using ferroelectric liquid crystals
P.A. Meier, S. Keuker-Baumann, T. Röder, H. Herrmann, R. Ricken, C. Silberhorn, H.-S. Kitzerow, Opto-Electronics Review (2024) 150611–150611.

Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler
S. Babel, L. Bollmers, M. Massaro, K.H. Luo, M. Stefszky, F. Pegoraro, P. Held, H. Herrmann, C. Eigner, B. Brecht, L. Padberg, C. Silberhorn, Optics Express 31 (2023).

Fully guided and phase locked Ti:PPLN waveguide squeezing for applications in quantum sensing
R. Domeneguetti, M. Stefszky, H. Herrmann, C. Silberhorn, U.L. Andersen, J.S. Neergaard-Nielsen, T. Gehring, Optics Letters 48 (2023).

Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology
C. Kießler, H. Conradi, M. Kleinert, V. Quiring, H. Herrmann, C. Silberhorn, Optics Express 31 (2023).

Cryogenic electro-optic modulation in titanium in-diffused lithium niobate waveguides
F. Thiele, F. vom Bruch, J. Brockmeier, M. Protte, T. Hummel, R. Ricken, V. Quiring, S. Lengeling, H. Herrmann, C. Eigner, C. Silberhorn, T. Bartley, Journal of Physics: Photonics 4 (2022).

On-Chip Quantum Communication Devices
A. Trenti, M. Achleitner, F. Prawits, B. Schrenk, H. Conradi, M. Kleinert, A. Incoronato, F. Zanetto, F. Zappa, I.D. Luch, O. Cirkinoglu, X. Leijtens, A. Bonardi, C. Bruynsteen, X. Yin, C. Kießler, H. Herrmann, C. Silberhorn, M. Bozzio, P. Walther, H.C. Thiel, G. Weihs, H. Hubel, Journal of Lightwave Technology 40 (2022) 7485–7497.

Cryogenic Second-Harmonic Generation in Periodically Poled Lithium Niobate Waveguides
M. Bartnick, M. Santandrea, J.P. Höpker, F. Thiele, R. Ricken, V. Quiring, C. Eigner, H. Herrmann, C. Silberhorn, T. Bartley, Physical Review Applied (2021).

Quantum optical coherence: From linear to nonlinear interferometers
K.H. Luo, M. Santandrea, M. Stefszky, J. Sperling, M. Massaro, A. Ferreri, P. Sharapova, H. Herrmann, C. Silberhorn, Physical Review A (2021).

Spectrally multimode integrated SU(1,1) interferometer
A. Ferreri, M. Santandrea, M. Stefszky, K.H. Luo, H. Herrmann, C. Silberhorn, P.R. Sharapova, Quantum (2021).

Nonlinear waveguides for integrated quantum light source
R.R. Domeneguetti, H. Conradi, M. Kleinert, C. Kießler, M. Stefszky, H. Herrmann, C. Silberhorn, U.L. Andersen, J.S. Neergaard-Nielsen, T. Gehring, in: 2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, Optica Publishing Group, 2021, p. eb_4_1.

Multimode integrated SU(1,1) interferometer
A. Ferreri, M. Santandrea, M. Stefszky, K.H. Luo, H. Herrmann, C. Silberhorn, P. Sharapova, in: Conference on Lasers and Electro-Optics, Optica Publishing Group, 2021.

Waveguide resonator with an integrated phase modulator for second harmonic generation
M. Stefszky, M. Santandrea, F. vom Bruch, S. Krapick, C. Eigner, R. Ricken, V. Quiring, H. Herrmann, C. Silberhorn, Optics Express (2020).

Cryogenic electro-optic polarisation conversion in titanium in-diffused lithium niobate waveguides
F. Thiele, F. vom Bruch, V. Quiring, R. Ricken, H. Herrmann, C. Eigner, C. Silberhorn, T. Bartley, Optics Express (2020).