Characterization and Utilization of Fiber-Generated Quantum Entanglement

Jun Chen

Preecha P. Yupapin, W. Khunnam, S. Suchat

We propose a new system for multi-entangled photons generation using an all fiber optic arrangement. The generation of the entangled states of two, four and eight entangled photons using an all fiber optic scheme is analyzed. The timing-walk off on the entangled state of two and four entangled photons suffering from the polarization in fiber optic is characterized. The compensation of such effects and the optimal entangled states of the entangled photons in fiber optic are analyzed and discussed.

Qiang Zhou, Wei Zhang, Feng Zhu +4 more

1.5 μm polarization entanglement generation is experimentally demonstrated utilizing off-the-shelf components based on polarization maintaining all-fiber scheme. Quantum state tomography measurement is performed, achieving an entanglement fidelity of 0.94±0.03, indicating its potential in quantum information.

Gustavo Moreira-Lima

Kim Fook Lee, Gregory S. Kanter

Systems for generating, manipulating, and measuring entangled photons are described. Quantum state tomographies are recorded with one of the entangled photons distributed over fiber. A high speed, low loss quantum switch for 1550 nm photons is demonstrated, which can manipulate photons for processing or multiplexing.

Xiongfeng Ma