Using phase locking for improving frequency stability and tunability of THz-band gyrotrons

Asel B. Adilova; Svetlana A. Gerasimova; Maria M. Melnikova; Alexandra V. Tyshkun; Andrey G. Rozhnev; Nikita M. Ryskin

doi:10.1117/12.2315157

26 April 2018 Using phase locking for improving frequency stability and tunability of THz-band gyrotrons

Asel B. Adilova, Svetlana A. Gerasimova, Maria M. Melnikova, Alexandra V. Tyshkun, Andrey G. Rozhnev, Nikita M. Ryskin

Proceedings Volume 10717, Saratov Fall Meeting 2017: Laser Physics and Photonics XVIII; and Computational Biophysics and Analysis of Biomedical Data IV; 107170A (2018) https://doi.org/10.1117/12.2315157
Event: Saratov Fall Meeting 2017, 2017, Saratov, Russian Federation

Abstract

Medium-power (10-100 W) THz-band gyrotrons operating in a continuous-wave (CW) mode are of great importance for many applications such as NMR spectroscopy with dynamic nuclear polarization (DNP/NMR), plasma diagnostics, nondestructive inspection, stand-off detection of radioactive materials, biomedical applications, etc. For all these applications, high frequency stability and tunability within 1-2 GHz frequency range is typically required. Apart from different existing techniques for frequency stabilization, phase locking has recently attracted strong interest. In this paper, we present the results of theoretical analysis and numerical simulation for several phase locking techniques: (a) phase locking by injection of the external driving signal; (b) mutual phase locking of two coupled gyrotrons; and (c) selfinjection locking by a wave reflected from the remote load.

Citation Download Citation

Asel B. Adilova, Svetlana A. Gerasimova, Maria M. Melnikova, Alexandra V. Tyshkun, Andrey G. Rozhnev, and Nikita M. Ryskin "Using phase locking for improving frequency stability and tunability of THz-band gyrotrons", Proc. SPIE 10717, Saratov Fall Meeting 2017: Laser Physics and Photonics XVIII; and Computational Biophysics and Analysis of Biomedical Data IV, 107170A (26 April 2018); https://doi.org/10.1117/12.2315157

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