A polarization maintaining scheme for 1.5 μm polarization entangled photon pair generation in optical fibers

Abstract

In this paper, the generation of polarization entangled photon pairs at 1.5 μm is experimentally demonstrated utilizing a polarization maintaining all-fiber loop, consisting of a piece of commercial polarization maintaining fiber and a polarization beam splitter/combiner with polarization maintaining fiber pigtails. A quantum state tomography measurement is performed to analyze the entanglement characteristic of the generated quantum state. In the experiment, a polarization entangled Bell state is generated with a entanglement fidelity of 0.97+/-0.03 and a purity of 0.94+/-0.03 demonstrating that the proposed scheme can realize polarization entangled photon pair generation with polarization maintaining property which is desired in applications of quantum communication and quantum information.

References in corpus (7)

• Photonic quantum technologies
• Quantum Communication
• Photonic crystal fibre source of photon pairs for quantum information processing
• A monolithically integrated polarization entangled photon pair source on a silicon chip
• Loss of polarization entanglement in a fiber-optic system with polarization mode dispersion in one optical path
• 1.5um Polarization-Entangled Bell States Generation Based on Birefringence in High Nonlinear Microstructure Fiber
• Telecom-Band Entanglement Generation for Chipscale Quantum Processing

Cited by in corpus (6)

• Fiber-based photon pair generation: a tutorial
• Photon pair generation by intermodal spontaneous four wave mixing in birefringent, weakly guiding optical fibers
• GHz-Pulsed Source of Entangled Photons for Reconfigurable Quantum Networks
• Generation of 1.5 μm discrete frequency entangled two-photon state in polarization maintaining fibers
• Controlled entanglement routing between two virtual pathways
• Discrete frequency-bin entanglement generation via cascaded second-order nonlinear processes in Sagnac interferometer