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arXiv · 1407.0183

Quantum state engineering of light with continuous-wave optical parametric oscillators

Olivier Morin·Jianli Liu·Kun Huang·Felippe A. S. Barbosa·Claude Fabre·Julien Laurat
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Abstract

The ability to engineer the quantum state of traveling optical fields is a central requirement for quantum information science and technology, including quantum communication, computing and metrology. In this video article, we describe the reliable generation of non-Gaussian states, including single-photon states and coherent state superpositions, using a conditional preparation method operated on the non-classical light emitted by optical parametric oscillators. Type-I and type-II phase-matched OPOs operated below threshold, i.e. single-mode or two-mode squeezed vacuum sources, are considered and common procedures, such as the required frequency filtering or the high-efficiency quantum state characterization by homodyning, are detailed. The reported method enables a high fidelity with the targeted state and the generation of the state in a well-controlled spatiotemporal mode, a crucial feature for their use in subsequent protocols.

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Olivier Morin, Jianli Liu, Kun Huang, Felippe A. S. Barbosa, Claude Fabre, Julien Laurat. 2014-07-01. Quantum state engineering of light with continuous-wave optical parametric oscillators. https://doi.org/10.3791/51224

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