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Updated: Sep 13, 2025

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Experimental Advances in Phase Estimation with Photonic Quantum States
Laura T Knoll1,2, Agustina G Magnoni1,2, Miguel A Larotonda1,2
1CITEDEF & UNIDEF-CONICET, J.B. de La Salle 4397, Villa Martelli, Buenos Aires 1603, Argentina.
None:
Photonic quantum metrology has emerged as a leading platform for quantum-enhanced precision measurements. By taking advantage of quantum resources such as entanglement, quantum metrology enables parameter estimation with sensitivities surpassing classical limits. In this review, we describe the basic tools and recent experimental progress in the determination of an optical phase with a precision that may exceed the shot-noise limit, enabled by the use of nonclassical states of light. We review the state of the art and discuss the challenges and trends in the field.
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