August 30, 2021 to September 3, 2021
University of Innsbruck
Europe/Zurich timezone

【415】Electrically Pumped Difference Frequency Generation in Bragg-reflection Waveguides

Aug 31, 2021, 5:30 PM
Room E

Room E

Talk Atomic Physics and Quantum Optics Atomic Physics and Quantum Optics


Alexander Schlager (University of Innsbruck)


Nonlinear optical processes are widely used in quantum communication and computation, as well as laser engineering. In particular, difference frequency generation can be utilized to erase spectral distinguishability between single photons or generate laser light in otherwise hard to reach wavelength regimes. In this work, we present an AlGaAs Bragg-reflection waveguide with an embedded AlInGaAs quantum dot laser. By setting the temperature of this microscopic device, we allow for phase-matching between the internal laser emission and the interacting light in the telecom wavelength range. With an external, tunable telecom laser we investigate the generated photons from 1540$\,$nm to 1630$\,$nm and determine a nonlinear conversion efficiency of 0.64(21)$\,$%/W/cm$^2$.

Primary author

Alexander Schlager (University of Innsbruck)


Mr Maximilian Götsch (University of Innsbruck) Dr Robert Chapman (RMIT University) Dr Stefan Frick (University of Innsbruck) Ms Hannah Thiel (University of Innsbruck) Dr Holger Suchomel (University of Würzburg) Dr Martin Kamp (University of Würzburg) Prof. Sven Höfling (University of Würzburg) Prof. Christian Schneider (University of Oldenburg) Prof. Gregor Weihs (University of Innsbruck)

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