Quantum measurement of the degree of polarization of a light beam

Abstract

We demonstrate a coherent quantum measurement for the determination of the degree of polarization (DOP). This method allows to measure the DOP in the presence of fast polarization state fluctuations, difficult to achieve with the typically used polarimetric technique. A good precision of the DOP measurements is obtained using 8 type II nonlinear crystals assembled for spatial walk-off compensation.

arXiv comment4 pages, 3 figures

References in corpus (4)

• Ultra-bright source of polarization-entangled photons
• Quantum Teleportation with a Complete Bell State Measurement
• Optimal estimation of two-qubit pure-state entanglement
• Experimental investigation of a coherent quantum measurement of the degree of polarization of a single mode light beam

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• Assessing the Polarization of a Quantum Field from Stokes Fluctuation
• Measuring the purity of a qubit state: entanglement estimation with fully separable measurements
• Purity estimation with separable measurements
• Fast, high-precision optical polarization synthesizer for ultracold-atom experiments
• Quantum versus classical polarization states: when multipoles count
• Discrimination between pure states and mixed states
• Simple quantum model for light depolarization