The Kommersant Science magazine shares the results of Kazan Quantum Center and Moscow State University joint research activities
Scientists from Kazan Quantum Center of KNRTU-KAI together with colleagues from the Faculty of Physics of Lomonosov Moscow State University have developed and experimentally demonstrated a new method for generating two-photon states of light in a special type of optical wave guides—photonic crystal fiber.
The idea of this approach is to create a two-photon light (biphotons, photon pairs) in various spectral ranges (visible and telecommunication) using compact commercial diode lasers with continuous-wave transmission.
“The proposed method will be the basis for generating compact fiber optic sources for various applications of quantum technologies. All the scientific investigations are conducted on our experimental installation. It is also planned to create a separate quantum light source based on this pilot setup,” said Dr. Maxim Smirnov, a representative of the KNRTU-KAI development group, researcher at the Laboratory of Integrated Quantum Optics.
The experimental capabilities of current fiber optic solutions will help quantum sources to go beyond bulky research facilities and transform into miniature tools. This will certainly expand their practical use in areas such as the development of quantum computers, quantum Internet, etc.
According to Dr. Prof. Sergey Moiseev, the Director of the Kazan Quantum Center of KNRTU-KAI, scientists from the Kazan Quantum Center of KNRTU-KAI in collaboration with colleagues from Lomonosov Moscow State University managed to develop a new type of biphoton source, which is based on the process of generation inside a microstructured fiber while using a commercial diode laser. The idea of creating such a source relies on the fact that microstructured fibers help produce biphotons at different wavelengths (oscillation frequencies) with a low average power of laser radiation.
The development was preceded by deep theoretical and experimental research in the field of nonlinear, fiber and quantum optics, which were financially supported by Russian scientific grants. As a result, a number of articles significant for fundamental and applied physics were published.
FYI: The Kazan Quantum Center of KNRTU-KAI was founded in 2014. Since that time, Professor Sergey Moiseev has been leading a research team (about 20 people) consisting of PhD degree holders, postgraduate students, researchers and engineers.
