TY - JOUR
T1 - Demonstration of a squeezed light source on thin-film lithium niobate with modal phase matching
AU - Arge, Tummas Napoleon
AU - Jo, Seongmin
AU - Nguyen, Huy Quang
AU - Lenzini, Francesco
AU - Lomonte, Emma
AU - Nielsen, Jens Arnbak Holboll
AU - Domeneguetti, Renato R.
AU - Neergaard-nielsen, Jonas Schou
AU - Pernice, Wolfram
AU - Gehring, Tobias
AU - Andersen, Ulrik Lund
PY - 2025
Y1 - 2025
N2 - Squeezed states are essential for continuous-variable (CV) quantum information processing, with wide-ranging applications in computing, sensing, and communications. Integrated photonic circuits provide a scalable, convenient platform for building large CV circuits. Thin-film lithium niobate (TFLN) is particularly promising due to its low propagation loss, efficient parametric down conversion, and fast electro-optical modulation. In this work, we demonstrate a squeezed light source on an integrated TFLN platform, achieving a measured shot noise reduction of 0.46 dB (1.5 dB on-chip) using modal phase matching and grating couplers with an efficiency of up to-2.2 dB. The achieved squeezing is comparable to what has been observed using more complex circuitry based on periodic poling. The simpler design allows for compact, efficient, and reproducible sources of squeezed light. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
AB - Squeezed states are essential for continuous-variable (CV) quantum information processing, with wide-ranging applications in computing, sensing, and communications. Integrated photonic circuits provide a scalable, convenient platform for building large CV circuits. Thin-film lithium niobate (TFLN) is particularly promising due to its low propagation loss, efficient parametric down conversion, and fast electro-optical modulation. In this work, we demonstrate a squeezed light source on an integrated TFLN platform, achieving a measured shot noise reduction of 0.46 dB (1.5 dB on-chip) using modal phase matching and grating couplers with an efficiency of up to-2.2 dB. The achieved squeezing is comparable to what has been observed using more complex circuitry based on periodic poling. The simpler design allows for compact, efficient, and reproducible sources of squeezed light. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
U2 - 10.1364/OPTICAQ.562545
DO - 10.1364/OPTICAQ.562545
M3 - Journal article
SN - 2837-6714
VL - 3
SP - 467
EP - 473
JO - Optica Quantum
JF - Optica Quantum
IS - 5
ER -