Fiber-based frequency-degenerate polarization-entanglement photon pair sources for information encoding

Feng Zhu; Wei Zhang; Yidong Huang

doi:10.1117/12.2247563

3 November 2016 Fiber-based frequency-degenerate polarization-entanglement photon pair sources for information encoding

Feng Zhu, Wei Zhang, Yidong Huang

Proceedings Volume 10029, Quantum and Nonlinear Optics IV; 100290O (2016) https://doi.org/10.1117/12.2247563
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

We propose and experimentally demonstrate a generation scheme of telecom-band fiber-based frequency-degenerate polarization-entanglement photon pair source. Basing on the vector spontaneous four wave mixing process in a Sagnac fiber loop along the clockwise and counter-clockwise directions, two frequency-degenerate and polarization orthogonal biphoton states generate and then lead to the polarization entanglement states by the interference at the beamsplitter. The raw fringe visibilities of the two-photon interferences are 97% and 92%, respectively. Information can be encoded on the generated photon pairs using the polarization entangled Bell states. It is demonstrated by a simplified Bell state measurement with a fringe visibility of 83%.

Citation Download Citation

Feng Zhu, Wei Zhang, and Yidong Huang "Fiber-based frequency-degenerate polarization-entanglement photon pair sources for information encoding", Proc. SPIE 10029, Quantum and Nonlinear Optics IV, 100290O (3 November 2016); https://doi.org/10.1117/12.2247563

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