The necessity of increasing the metrological characteristics of the quantum frequency standard on rubium-87 atoms is substantiated. It is noted that the main destabilizing factor that reduces the accuracy of frequency determination is temperature. To control it in the quantum frequency standard, thermostating and thermoregulation are used. It is established that the currently used systems for laser and optical components cannot provide the necessary temperature stability, which is required to improve the metrological characteristics of the quantum standard. A new circuit of a quantum frequency standard temperature controller with a rubidium gas cell using a PID controller has been developed, and its operation in the Micro-Cap environment has been simulated. Transient processes in the circuit of the thermostat are analyzed. A decrease in the influence of temperature on the optical components and characteristics of the laser in the quantum frequency standard was found.
$^1$Saint Petersburg Polytechnic University of Peter the Great\
$^2$Russian Institute of Radio Navigation and Time\
$^3$The Bonch-Bruevich Saint-Petersburg State University of Telecommunications
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