dorsal/arxiv
View SchemaPulsed squeezed light: simultaneous squeezing of multiple modes
| Authors | Wojciech Wasilewski, A. I. Lvovsky, Konrad Banaszek, Czeslaw Radzewicz |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0512215 |
| URL | https://arxiv.org/abs/quant-ph/0512215 |
| DOI | 10.1103/PhysRevA.73.063819 |
| Journal | Phys. Rev. A 73, 063819 (2006) |
Abstract
We analyze the spectral properties of squeezed light produced by means of pulsed, single-pass degenerate parametric down-conversion. The multimode output of this process can be decomposed into characteristic modes undergoing independent squeezing evolution akin to the Schmidt decomposition of the biphoton spectrum. The main features of this decomposition can be understood using a simple analytical model developed in the perturbative regime. In the strong pumping regime, for which the perturbative approach is not valid, we present a numerical analysis, specializing to the case of one-dimensional propagation in a beta-barium borate waveguide. Characterization of the squeezing modes provides us with an insight necessary for optimizing homodyne detection of squeezing. For a weak parametric process, efficient squeezing is found in a broad range of local oscillator modes, whereas the intense generation regime places much more stringent conditions on the local oscillator. We point out that without meeting these conditions, the detected squeezing can actually diminish with the increasing pumping strength, and we expose physical reasons behind this inefficiency.
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"abstract": "We analyze the spectral properties of squeezed light produced by means of\npulsed, single-pass degenerate parametric down-conversion. The multimode output\nof this process can be decomposed into characteristic modes undergoing\nindependent squeezing evolution akin to the Schmidt decomposition of the\nbiphoton spectrum. The main features of this decomposition can be understood\nusing a simple analytical model developed in the perturbative regime. In the\nstrong pumping regime, for which the perturbative approach is not valid, we\npresent a numerical analysis, specializing to the case of one-dimensional\npropagation in a beta-barium borate waveguide. Characterization of the\nsqueezing modes provides us with an insight necessary for optimizing homodyne\ndetection of squeezing. For a weak parametric process, efficient squeezing is\nfound in a broad range of local oscillator modes, whereas the intense\ngeneration regime places much more stringent conditions on the local\noscillator. We point out that without meeting these conditions, the detected\nsqueezing can actually diminish with the increasing pumping strength, and we\nexpose physical reasons behind this inefficiency.",
"arxiv_id": "quant-ph/0512215",
"authors": [
"Wojciech Wasilewski",
"A. I. Lvovsky",
"Konrad Banaszek",
"Czeslaw Radzewicz"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.73.063819",
"journal_ref": "Phys. Rev. A 73, 063819 (2006)",
"title": "Pulsed squeezed light: simultaneous squeezing of multiple modes",
"url": "https://arxiv.org/abs/quant-ph/0512215"
},
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