Two-photon coincident-frequency entanglement via extended phase matching |
| |
| Authors: | Kuzucu Onur Fiorentino Marco Albota Marius A Wong Franco N C Kärtner Franz X |
| |
| Affiliation: | Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA. |
| |
| Abstract: | We demonstrate a new class of frequency-entangled states generated via spontaneous parametric down-conversion under extended phase-matching conditions. Biphoton entanglement with coincident signal and idler frequencies is observed over a broad bandwidth in periodically poled KTiOPO4. We demonstrate high visibility in Hong-Ou-Mandel interferometric measurements under pulsed pumping without spectral filtering, which indicates excellent frequency indistinguishability between the down-converted photons. The coincident-frequency entanglement source is useful for quantum information processing and quantum measurement applications. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
