Experimental Demonstration of Gyrotron Frequency Stabilization by Resonant Reflection

Fokin, A. P.; Богдашов, А. А.; Novozhilova, Yu. V.; Bakunin, Vladimir L.; Паршин, В.В.; Glyavin, M. Yu.

doi:10.1109/led.2021.3083641

Cited by 6 publications

(2 citation statements)

References 30 publications

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“…Несколько лет назад в ИПФ РАН впервые экспериментально наблюдалась эффективная стабилизация частоты гиротрона при отражении части его излучения от внешнего квазиоптического резонатора [17].…”

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Studying the possibility of frequency stabilization of two gyrotrons under the influence of reflection from an external high-Q resonator

Novozhilova,

Bogdashov,

Glyavin

et al. 2023

JRE

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The possibility of frequency stabilization of two gyrotrons with similar parameters when part of their radiation is reflected from an external high-Q cavity is shown analytically, and the stability of stabilized states is investigated. Analysis of stationary states in which the generators radiate coherently shows that the radiation frequency can be stabilized if the quality factor of the external resonator is high enough. In this case, changing the parameters of the system leads to significantly smaller changes in the generation frequency than in the absence of reflections: in a fairly wide range of parameters, the gyrotron radiation frequency can be kept within the band of the external resonator. As the eigen frequencies of gyrotron resonators increase and decrease, hysteresis and jumps in the radiation frequency can be observed. A study of stability at the optimal delay phase shows that frequency-stabilized states are stable. When the deviation from these states is small, the disturbances in the amplitudes of the gyrotrons decrease most quickly. At the next stage, over a longer period of time, stationary values of the gyrotron phases are settled. At the last, longest stage, stationary values of the amplitude and phase of the external resonator are formed.

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Studying the possibility of frequency stabilization of two gyrotrons under the influence of reflection from an external high-Q resonator

Novozhilova,

Bogdashov,

Glyavin

et al. 2023

JRE

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“…Такие режимы когерентного сложения колебаний могут быть реализованы как при помощи активной синхронизации источников за счет введения внешнего сигнала от единственного стабилизированного источника [6,7], так и за счет пассивных элементов, например, резонансных отражателей[8,9,10]. Экспериментальные исследования[11] показывают эффективность стабилизации частоты одного гиротрона при помощи резонансного отражателя, однако задача стабилизации частоты и фазы нескольких гиротронов, работающих на один резонансный отражатель, до сих не…”

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Numerical simulation of operation of two gyrotrons with a common resonant reflector

Novozhilova,

Bogdashov,

Nazarovsky

et al. 2023

JRE

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The generation regimes of two gyrotrons with a common narrow-band resonant reflector were studied using numerical simulation in the approximation of a fixed field structure. The dependences of the output power and generation efficiency, frequency and phase of oscillations of each gyrotron on system parameters, such as the driving magnetic field, mutual detuning of the gyrotrons’ eigen frequencies and the phase delay of the reflected wave, have been calculated. Using the example of gyrotrons at a frequency of 28 GHz with an output power of up to 10 kW, the possibility of stabilizing the radiation frequency of two gyrotrons when part of their power is reflected from an external high-Q resonator was demonstrated. It is shown that even if the eigen frequencies of the gyrotron resonators and the delay phases of the reflected wave do not coincide, it is possible to obtain frequency-stable states in which the phase difference of the gyrotrons does not depend on time and on the initial conditions, while the radiation power of each gyrotron exceeds the power of autonomous generation.

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The Progress in the Studies of Mode Interaction in Gyrotrons

Sabchevski

Glyavin

Nusinovich

2022

J Infrared Milli Terahz Waves

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Experimental Demonstration of Gyrotron Frequency Stabilization by Resonant Reflection

Cited by 6 publications

References 30 publications

Studying the possibility of frequency stabilization of two gyrotrons under the influence of reflection from an external high-Q resonator

Studying the possibility of frequency stabilization of two gyrotrons under the influence of reflection from an external high-Q resonator

Numerical simulation of operation of two gyrotrons with a common resonant reflector

The Progress in the Studies of Mode Interaction in Gyrotrons

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