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20182026
most citedOptimizing photon-number resolution with superconducting nanowire multi-photon detectors

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physics.optics2026

Photorefraction Management in Lithium Niobate Waveguides: High-Temperature vs. Cryogenic Solutions

Nina A. Lange, René Pollmann, Michael Rüsing +7

Lithium niobate sees widespread use in nonlinear and quantum optical devices, such as for sum- and difference-frequency generation or spontaneous parametric down-conversion. In lit…

physics.optics2020

Waveguide Resonator with Integrated Phase Modulator for Second Harmonic Generation

Michael Stefszky, Matteo Santandrea, Felix vom Bruch +6

We report second harmonic generation from a titanium indiffused lithium niobate waveguide resonator device whose cavity length is locked to the fundamental pump laser using an on-c…

physics.optics2020

General analytic theory of classical collinear three wave mixing in a monolithic cavity

Matteo Santandrea, Michael Stefszky, Christine Silberhorn

Integrated, monolithic nonlinear cavities are of high interest in both classical and quantum optics experiments for their high efficiency and stability. However, a general, analyti…

physics.optics2019

An interferometric method for determining the losses of spatially multi-mode nonlinear waveguides based on second harmonic generation

Matteo Santandrea, Michael Stefszky, Ganaël Roeland +1

The characterisation of loss in optical waveguides is essential in understanding the performance of these devices and their limitations. Whilst interferometric-based methods genera…

physics.optics2019

Characterisation of Inhomogeneities in Ti:LiNbO waveguides

Matteo Santandrea, Michael Stefszky, Ganaël Roeland +1

Nonlinear processes in integrated, guiding systems are fundamental for both classical and quantum experiments. Integrated components allow for compact, modular and stable light-pro…

physics.optics2019

General framework for the analysis of imperfections in nonlinear systems

Matteo Santandrea, Michael Stefszky, Christine Silberhorn

In this paper, we derive a framework to understand the effect of imperfections on the phasematching spectrum of a wide class of nonlinear systems. We show that this framework is ap…