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physics.optics2025

Nanodomain poling unlocking backward nonlinear light generation in thin film lithium niobate

Alessandra Sabatti, Jost Kellner, Robert J. Chapman +1

Nonlinear frequency conversion offers powerful capabilities for applications in telecommunications, signal processing, and computing. Thin-film lithium niobate (TFLN) has emerged a…

quant-ph2025

Scalable quantum interference in integrated lithium niobate nanophotonics

Tristan Kuttner, Alessandra Sabatti, Jost Kellner +2

Photonics has emerged as one of the leading platforms for the implementation of real-world-applicable quantum technologies, enabling secure communication, enhanced sensing capabili…

quant-ph2025

Counter-propagating spontaneous parametric down-conversion source in lithium niobate on insulator

Jost Kellner, Alessandra Sabatti, Tristan Kuttner +2

Quantum photonic technologies rely on the ability to generate, manipulate, and interfere indistinguishable single photons on a scalable platform. Among the various approaches, spon…

quant-ph2025

Programmable Bell State Generation in an Integrated Thin Film Lithium Niobate Circuit

Andreas Maeder, Robert J. Chapman, Alessandra Sabatti +3

Entanglement is central to quantum technologies such as cryptography, sensing, and computing. Photon pairs generated via nonlinear optical processes are excellent for preparing ent…

physics.optics2025

Integrated thin film lithium niobate mid-infrared modulator

Pierre Didier, Prakhar Jain, Mathieu Bertrand +7

The mid-infrared spectral range holds great promise for applications such as molecular spectroscopy and telecommunications. Many key molecules exhibit strong absorption features in…

physics.optics2025

Low threshold integrated optical parametric oscillator with a compact Bragg resonator

Jost Kellner, Alessandra Sabatti, Andreas Meader +1

Optical parametric oscillators (OPOs) have been studied as basic components for optical computing with phase encoding and Ising machines. Integrated photonics offers a scalable sol…