Power-efficient silicon nitride soliton microcombs

Microcombs are strong contenders for attaining the frequency stability and performance of standard passively modelocked lasers on a chip scale. Understanding the optical phase noise dynamics in soliton microcombs and enhancing the power efficiency are crucial directions for the development of ultra-low timing jitter pulsed sources on-chip with enhanced repetition rate stability and ultra-low optical linewidth.

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Integrated devices and high-dimensional photonic systems for quantum technologies

Quantum technologies promise a change of paradigm for many fields of application, for example in communication systems, in high-performance computing and simulation of quantum systems, as well as in sensor technology. However, the experimental realization of suitable system still poses considerable challenges. Current efforts in photonic quantum target the implementation of practical and scalable systems, where the realization of controlled quantum network structures is key for many applications.

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3D integration enabling ultra-low noise isolator-free lasers in silicon photonics

Laser integration in silicon photonics has been tackled by heterogeneous integration with compound III-V materials. The availability of ultra-low-loss silicon nitride waveguides offer the possibilities in enabling ultra low noise lasers, through self-injection locking of lasers with ultra-high-Q microresonators.

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Integrated photonic quantum technologies

Remarkable progress has been made in the development of hardware for quantum technologies. As a platform for quantum technologies, integrated photonics has enabled significant leaps for integrating many components, including programmable circuitry, photon sources and detectors. However, machines such as fault tolerant quantum computers appear to be a long way off for all platforms, including photonics.

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New integrated LiDAR technology using chip-integrated beam steering and frequency-angular imaging

We report an on-chip, acousto-optic beam steering technique that uses only a single gigahertz acoustic transducer to steer light beams into free space. Exploiting the physics of Brillouin scattering, where beams steered at different angles are labeled with unique frequency shifts, this technique uses a single coherent receiver to resolve an object’s angular position in the frequency domain and enables frequency-angular resolving (FAR) LiDAR.

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Professor Wolfgang Freude is member of the Organising Committee for ECIO 2024

Wolfgang Freude received the Dipl.­Ing. (M.S.E.E.) and the Dr.­Ing. (Ph.D.E.E.) degrees in Electrical Engineering in 1969 and 1975 from the University of Karlsruhe, Germany. He is Professor at the Institute of Photonics and Quantum Electronics and a Distinguished Senior Fellow, both at Karlsruhe Institute of Technology (KIT).

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Integrated THz-photonics transceivers by all-dielectric phonon-polariton nonlinear nanoantennas

A presentation by invited speaker Costantino De Angelis, Professor at University of Brescia, Italy. He received the Master degree (cum laude) in Electronic Engineering and the Ph. D. degree in Electronics and Telecommunications Engineering from the University of Padova in 1989 and 1993, respectively. In 1998 he has been appointed Professor of Electromagnetic Fields at the University of Brescia.

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