Paper 14100-41
Paper 14100-41
Photon statistics Transducer
15 April 2026 • 15:00 - 15:20 CEST | Boston/Salon 11 (Niveau/Level 1)
Abstract
We present a photon statistics transducer — a high-extinction, broadband electro-optic device that enables real-time, voltage-programmable control of photon-number distributions. Using a cascaded thin-film lithium niobate (TFLN) Mach–Zehnder amplitude modulator with >50 dB extinction, we deterministically switch light between Poissonian and super-Poissonian regimes on nanosecond timescales. By combining coherent seeding with erbium-amplifier dynamics, the device tunes the second-order coherence from
𝑔(2)(0)=1.0 to 1.7 and allows photon-flux control down to sub-photon levels, verified with superconducting nanowire detectors. This establishes statistical modulation as a new functional primitive for integrated photonics, enabling entropy-aware signal processing, secure communication, and hybrid quantum-classical systems.
Presenter
Julian Rasmus Bankwitz
Ruprecht-Karls-Univ. Heidelberg (Germany)
Master’s degree in Physics from the University of Münster, working in the group of Prof. Carsten Schuck on ultra-high-Q tantalum oxide resonators.
PhD in Nanoengineering from the University of Heidelberg, in the group of Prof. Wolfram Pernice, focusing on high-speed integrated lithium-niobate modulators for quantum computing.
Co-founder and CEO of Linq Photonics, a German company developing massively parallelized, high-speed modulators for visible and near-telecom wavelengths, enabling next-generation Quantum Computing and LiDAR applications.