All-fiber source of frequency-entangled photon pairs
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Article number | 033817 |
| Journal / Publication | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 79 |
| Issue number | 3 |
| Publication status | Published - 3 Mar 2009 |
| Externally published | Yes |
Link(s)
Abstract
We present an all-fiber source of frequency-entangled photon pairs by using four-wave mixing in a Sagnac fiber loop. Special care is taken to suppress the impurity of the frequency entanglement by cooling the fiber and by matching the polarization modes of the photon pairs counterpropagating in the fiber loop. Coincidence detection of signal and idler photons, which are created in pair and in different spatial modes of the fiber loop, shows the quantum interference in the form of spatial beating, while the single counts of the individual signal (idler) photons keep constant. When the production rate of photon pairs in each propagation direction of the fiber loop is about 0.065 pairs/pulse, the envelope of the quantum interference reveals a visibility of (95±2) %, which is close to the calculated theoretical limit 98.7%. © 2009 The American Physical Society.
Bibliographic Note
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Citation Format(s)
All-fiber source of frequency-entangled photon pairs. / Li, Xiaoying; Yang, Lei; Ma, Xiaoxin et al.
In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 79, No. 3, 033817, 03.03.2009.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
