TOPTICA, ams OSRAM, Fraunhofer to Develop Quantum Light Sources

Under the umbrella of the DigiQuant project funded by the Bavarian Ministry of Economic Affairs, TOPTICA, ams OSRAM, and the Fraunhofer Institute for Integrated Circuits IIS (Fraunhofer IIS) will develop diode-based laser technology to advance the field of quantum optics. The joint project supports market introduction of quantum computers.

Blue fluorescing cloud of strontium atoms within an atomic clock that have been laser-cooled to milli-Kelvin temperatures. Courtesy of Physikalisch-Technische Bundesanstalt (PTB).

Within the project, the laser diodes are to be developed at ams OSRAM. The diodes are suitable for hybrid integration of photonic waveguides and digital control electronics at TOPTICA.

Fraunhofer IIS and TOPTICA will investigate the miniaturization of electronics in integrated circuits. The effort seeks to enable the digitized operation of any material class diodes from a diverse range of manufacturers. The miniaturized and digitized subsystem will be tested in two different applications, a quantum computer application and an industrial application to read out a digital code with a hand-held scanner.

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Published: November 2022

Glossary

diode: A two-electrode device with an anode and a cathode that passes current in only one direction. It may be designed as an electron tube or as a semiconductor device.
quantum optics: The area of optics in which quantum theory is used to describe light in discrete units or "quanta" of energy known as photons. First observed by Albert Einstein's photoelectric effect, this particle description of light is the foundation for describing the transfer of energy (i.e. absorption and emission) in light matter interaction.
quantum: The term quantum refers to the fundamental unit or discrete amount of a physical quantity involved in interactions at the atomic and subatomic scales. It originates from quantum theory, a branch of physics that emerged in the early 20th century to explain phenomena observed on very small scales, where classical physics fails to provide accurate explanations. In the context of quantum theory, several key concepts are associated with the term quantum: Quantum mechanics: This is the branch of...

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