High efficiency entangled photon pair collection in type II parametric fluorescence

By Christian Kurtsiefer, M. Oberparleiter, Harald Weinfurter. 2001

227 citations recorded by the source corpus.

We report on a method for optimizing the collection of entangled photon pairs in type-II parametric fluorescence. With this technique, we detected 360000 polarization-entangled photon pairs per second in the near-IR region in single-mode optical fibers. The entanglement of the photon pairs was verified by measuring polarization correlations in different bases of at least 96%.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/9f205dc8db1fcd59279c2d9c29e79d2c25426143

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

1. Andreas Christ
2. Wolfgang Mauerer
3. B. Brecht
4. Christine Silberhorn
5. C. Couteau

In Atomic and Molecular Physics, and Optics

1. Andreas Christ
2. Wolfgang Mauerer
3. B. Brecht
4. Christine Silberhorn
5. C. Couteau

Citations in the corpus

• Theory of quantum frequency conversion and type-II parametric down-conversion in the high-gain regime (2012, background): “Type-II PDC enables the generation of various quantum states ranging from single photons [1, 2, 3, 4, 5] over entangled photon-pairs [6, 7, 8] up to EPR-states [9, 10].”
• Spontaneous parametric down-conversion (2018, background): “One way to overcome this situation is to select spectrally with narrow-band filters (from 1 to 10 nm) the down-converted photon pairs, on top of a spatial (with angles) and temporal (with coincidence detections) selection [11,23].”