Polarization-entangled two-photon source

The polarization-entangled two-photon source by OZ Optics enables the holistic characterization of the birefringence of laser-written waveguide systems.

As “circuitry for quantum light”, functionalized waveguides constitute the fundamental building blocks of integrated quantum photonic devices. In conjunction with precisely characterized laser-induced micro- and nanostructures for the local modification of the host material, they open up the polarization degree of freedom of photons to be harnessed for on-chip quantum optics.

Future fields of applications of this quantum-light source will be the fine-tuning and tailoring of quantum-optical circuits and the development of novel sensor systems for properties of quantum light based on integrated-optical arrangements in combination with the now accessible entanglement of photons. In addition to these manifold technological scenarios, this purchase paves the way for future projects as well as the intensification of existing scientific collaborations.


The purchase of this quantum-light source was financially supported by the state of Mecklenburg-Vorpommern via the European Regional Development Fund (ERDF), programming period 2014-2020.

Contact: Prof. Alexander Szameit