Abstract
We experimentally study the generation of photon pairs via spontaneous four-wave mixing with two distinct laser pulses. We find that the dual-pump technique enables new capabilities: 1) a new characterization methodology to measure noise contributions, source brightness and photon-collection efficiencies directly from raw photon-count measurements; 2) an enhanced ability to generate heralded single photons in a pure quantum state; and 3) the ability to derive upper and lower bounds on heralded-photon quantum state purity from measurements of photon-number statistics even in the presence of noise. Such features are highly valuable in photon-pair sources for quantum applications.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 19050-19061 |
| Number of pages | 12 |
| Journal | Optics Express |
| Volume | 27 |
| Issue number | 13 |
| DOIs | |
| State | Published - 2019 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics