Pulsed squeezed light: Simultaneous squeezing of multiple modes
By Wojciech Wasilewski, A. Lvovsky, K. Banaszek, C. Radzewicz. 2005
176 citations recorded by the source corpus.
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.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/87e84e3208defa75b14e49286150ffe14ceb5d47
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In Artificial Intelligence
In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Theory of quantum frequency conversion and type-II parametric down-conversion in the high-gain regime (2012, methodology): “This solution is constrained by the fact that it has to form a canonical transformation [25, 40, 41].”
- 5. Squeezed Light (2014, unknown): “(53), one finds T [13], which can then be compared with the values expected from the setup at hand.”
- Probing multimode squeezing with correlation functions (2010, background): “This description is rigorously fulfilled for PDC in waveguides [21, 22], but can also be applied for other experimental configurations, since the approximation carries all the complexities of the multimode propagation in the spectral degree of freedom.”
- Modes and states in quantum optics (2019, background): “a tensor product of vacuum squeezed states, the variance in dB of the squeezed quadrature Xˆ i in mode i being proportional to the eigenvalue λi(Lvovsky and Banaszek, 2005; de Valcarcel et al., 2006; Wasilewski et al., 2006). The number of non-zero eigenvalues (i.e. the rank of the G matrix) gives t”
- Nonlinear optical signals and spectroscopy with quantum light (2016, unknown): “…triggered in a strongly non-degenerate regime (Kalachev et al., 2008)], and the expansion around the central frequencies yields (Joobeur et al., 1994; Wasilewski et al., 2006) ∆k(ωa, ωb)L/2 = ( dkp dωp − dk dω ) L/2 (ωa + ωb − ωp) + 1 2 d2kp dω2p L/2 (ωa + ωb − ωp)2 − 1 2 d2k dω2 L/2 [ (ωa − ω1)2…”