PhoQS project: Quantum photonic systems in silicon nitride technology

Overview

In this research project, the feasibility of integration of quantum optic components, which are used in photonic quantum computers and sensors, in commercially available silicon nitride technology is investigated.

Silicon nitride is widely used in highly integrated CMOS technologies and therefore, it allows mass production of photonic components with low process tolerances, which leads to very low prices per chip. Moreover, it can be monolithically integrated, which means that electronic and photonic components are placed in the same chip. Thus, parasitic resistances, capacitances and inductances, resulting from interconnects between multiple chips are avoided. Silicon nitride photonics allow fabrication of optical components with very low optical losses, high quality factor resonators and optical nonlinearity, which are required in quantum systems.

The project focusses on:

  • Input and output coupling of photonic signals into Si3N4 structures
  • Investigating the feasibility of fabrication of nonlinear components in Si3N4
  • Development of optical components ins commercially available silicon nitride technology
  • Generation of pump pulses for PDC (parametric-down-conversion) and QPG (quantum pulse gate) applications in Si3N4 compatible technologies

Key Facts

Project duration:
07/2023 - 12/2024

More Information

Principal Investigators

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Prof. Dr.-Ing. J. Christoph Scheytt

System and Circuit Technology / Heinz Nixdorf Institut

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Project Team

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Tobias Schwabe, M.Sc.

System and Circuit Technology / Heinz Nixdorf Institut

About the person

Contact

If you have any questions about this project, contact us!

Tobias Schwabe, M.Sc.

System and Circuit Technology / Heinz Nixdorf Institut

Wissenschaftlicher Mitarbeiter - Mitglied

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