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Low-loss SH-propagation in nanoscale AlGaAs-on-insulator waveguides for nonlinear quantum light sources operating with telecom wavelengths

M. Placke1,2, J. Schlegel2, P. Della Casa2, A. Thies2, M. Weyers2, S. Ramelow1,2 and G. Tränkle2

Published in:

Conf. on Lasers and Electro-Optics (CLEO 2023), Technical Digest Series (Optica Publishing Group, 2023), San Jose, USA, May 7-12, ISBN: 978-1-957171-25-8, paper SF2P.7 (2023).


We report unprecedentedly low second harmonic band propagation losses in highly nonlinear AlGaAs-on-insulator waveguides pumped in the telecom L-band. These findings pave the way towards parametric nonlinearities at single photon-level.

1 Physics Institute, Humboldt University Berlin, Newtonstraße 15, 12489 Berlin, Germany
2 Ferdinand-Braun-Institut gGmbH, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany

Related Topics:

Dense wavelength division multiplexing, Diode lasers, Quantum key distribution, Quantum light sources, Rayleigh scattering, Waveguides

© 2023 The Author(s). © Optica Publishing Group 2023.
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