Simple but efficient polarization-entangled photon sources
We report on the design and characterization of polarization-entangled photon sources at NIR and telecom wavelengths, based on spontaneous parametric downconversion in a linear interferometric arrangement with beam displacers. The sources demonstrate state-of-the-art performance with respect to detected brightness, heralding efficiency, and entanglement visibility. Featuring a stable and compact profile with simple alignment, they hold great promise for future development of field- and space-ready prototypes, alongside serving as a practical guide for researchers interested in designing efficient entangled photon sources.
Authors
- Uday Chandrashekara
- Fabian Steinlechner (ORCID: https://orcid.org/0000-0003-0122-1182)
- Markus Gräfe (ORCID: https://orcid.org/0000-0001-8361-892X)
- Riza Fazili (ORCID: https://orcid.org/0000-0001-9938-9949)
- Andrej Kržič (ORCID: https://orcid.org/0000-0003-2775-4657)
- Purujit Singh Chauhan
- Rodrigo Gómez (ORCID: https://orcid.org/0000-0001-8712-9074)
Institutions
- University of Ottawa (CA)
- Technische Universität Darmstadt (DE)
- Fraunhofer Institute for Applied Optics and Precision Engineering (DE)
- Friedrich Schiller University Jena (DE)
Publication Details
- Journal
- Journal of the Optical Society of America B
- Published
- 2024-10-23
- DOI
- https://doi.org/10.1364/josab.531089
- Citations
- 2
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.42
Funders
- Freistaat Thüringen
- Fraunhofer-Gesellschaft