![]() In the future, the signal is to be distributed not only between Poznan and Torun, but also to Warsaw and Wroclaw. Thus, atomic clocks can contribute to the development of new technologies and more efficient transmission systems in telecommunications networks. Moreover, ultra-stable frequency signals can be used in many fields, in particular in telecommunications (synchronisation) or navigation. Thanks to them it will be possible to accurately determine the height of the terrain, with centimetre accuracy. It can be used in a wide range of research from spectroscopy, through fundamental physics experiments, to searching for dark matter and monitoring Earth’s gravity – says Krzysztof Turza, specialist at PSNC.Īs soon as the signals from the new clocks become common, they will probably be useful, among others, in geodesy. – It will allow experiments that require a narrow laser line width at a well-defined frequency to be conducted away from the optical clock. The system will enable the deployment of a range of services targeted at the photonics, optics, chemical and other related industries. ![]() An optical reference signal with low phase noise will be sent to participants in the NLPQT consortium, where it will be available to interested scientific and industrial partners. Its aim is to create an ultra-stable laser system that can be connected to the optical atomic clock and to a distribution network using fiber optic links. ![]() PSNC activities are carried out within the framework of the National System of Generation and Distribution of Standard Optical Carrier. These results are comparable with the best systems in the world for optical frequency reference. In these systems, the frequency “information carrier” is a very narrow (spectrally) laser beam tied to an optical clock, which is the most precise clock in the world.Īccording to preliminary measurements, the constructed devices are characterized by long-term instability not worse than 3x10e-20. The optical carrier distribution system uses devices built at PSNC and is based on transmission in a single, dedicated optical fiber. This is the main stage of verifying the transmission system in a real working environment. This configuration of the connection (in a loop) will enable testing the effectiveness of mechanisms for stabilizing the transmitted signal and compensation of interference. The connection was test launched in the Torun-Poznan-Torun loop using the optical fiber infrastructure of the PIONIER network and is over 600 km long.
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