Bianca Höfer, Fabian Olbrich, Jan Kettler, Matthias Paul, Jonathan Höschele, Michael Jetter, Simone L. Portalupi, Fei Ding, Peter Michler, Oliver G. Schmidt
Published 2018-02-10Version 1
We report on optical investigations of MOVPE-grown InGaAs/GaAs quantum dots emitting at the telecom O-band that were integrated onto uniaxial piezoelectric actuators. This promising technique, which does not degrade the optical quality or performances of the quantum emitters, enables us to tune the quantum dot emission wavelengths and their fine-structure splitting. By spectrally analyzing the emitted light with respect to its polarization, we are able to demonstrate the cancelation of the fine structure splitting within the experimental resolution limit. This work represents an important step towards the high-yield generation of entangled photon pairs at telecommunication wavelength, together with the capability to precisely tune the emission to target wavelengths.
Quadexciton cascade and fine structure splitting of the triexciton in a single quantum dot
Engineering quantum dots for electrical control of the fine structure splitting
Tuning exciton and biexciton transition energies and fine structure splitting through hydrostatic pressure in single InGaAs quantum dots
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