Optics and Spectroscopy journal published a new study written by the Russian Academy of Science Institute of Applied Physics and Institute of Chemistry of High-Purity Substances with the contribution of the Institute of Telecommunications of Riga Technical University.
The non-classical multiphoton state allows to analyse fundamental foundations of physics like gravitational wave detection. However, you need to generate non-classical multiphoton state light through a process called quantum noise squeezing to use it for the research of any physical phenomena, precision metrology, or quantum communications.
Many methods exist, but the one based on the nonlinear optical effects in optical fibers is one of the most advantageous. Even though you can use silica fibers, whether solid or photonic crystal or chalcogenide glass fibers, the researches of this work produce non-classical multiphoton states in self-made bismuth-modified tellurite glass fiber with a high Kerr nonlinearity coefficient. Why tellurite glass? Because you require a much shorter tellurite fiber span (6-14 m) compared to silica fiber length (120-300 m).
Please visit this DOI link to get the article and read about the manufacturing of the proposed fiber and the generation of non-classical multiphoton states.
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