-
Article
Open AccessVisible–Telecom Photon Pair Source Based on a Photonic-Crystal Fiber under Continuous-Wave Pum**
The generation of interband photon pairs with wavelengths near 0.5 and 1.6 μm in a photonic-crystal fiber under low-power cw optical pum** by a diode laser with a central wavelength of 0.8 μm has been experi...
-
Article
Post-Processing of Random Number Generator in InGaAs Contact Photodiode Homodyne Circuit Based on Continuous Wavelet Transform to Improve NIST Longest Run Test Pass Rate
Using a continuous wavelet transform, the parameters of the noise generated in a balanced laser radiation detector at the output of an optical power divider were studied. A procedure for mathematical signal pr...
-
Article
Using Discrete Wavelet Analysis to Optimize a Random Number Generator Based on an InGaAs pi-n Photodiode in a Homodyne Scheme
An approach is proposed for optimizing the operation of a random number generator based on discrete wavelet analysis. It is shown that controlling the contribution of the scale components of the wavelet transf...
-
Article
Peculiarities of Generation of Broadband Two-Photon States in Lithium Niobate Nanowaveguide
Numerical modeling and analysis of dispersion characteristics of a lithium niobate nanowaveguide with an inversely inclined trapezoidal cross-sectional structure have been carried out. Based on the analysis, i...
-
Article
Enhancing Efficiency of the Fast Quantum Memory on Single-Atom in Cavity
The operation of a fast quantum memory protocol on a single three-level atom in cavity is theoretically modeled. The influence of losses, such as cavity loss and atomic relaxation on the efficiency of photon l...
-
Article
Optimizing the Parameters of a Periodically Poled LiNbO3 Nanowaveguide Structure for Generating Ultrabroadband Biphotons in the Near-IR Range
For quantum biomicroscopy, light sources need to provide a reliable signal at low intensity levels with a high rate generation in the near-infrared region. To develop this light source, we investigated the abi...
-
Article
Non-Adiabatic Fast Quantum Memory on an Atom-Resonator System Provided by Optimal Switching on a Control Field
The efficiency of non-adiabatic quantum memory based on the Raman interaction between a photon and a three-level atom in a high-Q resonator was investigated. The optimum gradual switch-on form of a control fie...
-
Article
Fast Quantum Memory on a Single Atom in a High-Q Cavity
We develop the fast nonadiabatic quantum storage of a single-photon wave packet on a three-level atom in a high-Q cavity and find optimum parameters of the photon temporal mode and controlling laser pulse, which ...
-
Article
Maps of Broadband Quantum Memory Based on an Atomic Frequency Comb
The influence of the parameters of an inhomogeneously broadened optical transition in the shape of an atomic frequency comb on dispersion effects in the quantum-memory protocol implemented in such an atomic sy...
-
Article
Using a Heterodyne Detection Scheme in a Subcarrier Wave Quantum Communication System
The single photon detectors currently used in quantum communication schemes impose considerable restrictions on signal registration and dark count rates, require cooling to low temperatures, and are relatively...
-
Article
A Quantum Transistor Based on an Atom–Photon Molecule
A quantum transistor based on an atomic–photon molecule is proposed. It is a linear chain of three coupled microresonators, each of which contains one resonant atom. The circuit of the proposed quantum transis...
