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Telecommunications and Radio Engineering

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ISSN Druckformat: 0040-2508

ISSN Online: 1943-6009

SJR: 0.185 SNIP: 0.268 CiteScore™:: 1.5 H-Index: 22

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METHODS FOR OBTAINING MULTIFREQUENCY LASING IN RESONANT CAVITY OF THE THZ LASER

Volumen 75, Ausgabe 4, 2016, pp. 355-361
DOI: 10.1615/TelecomRadEng.v75.i4.50
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ABSTRAKT

In a number of areas of radio physics when developing heterodyne devices that use lasers of terahertz frequency range (THz) as radiation sources it is required to obtain a stable distance between the frequencies of the signal and heterodyne oscillation channels. This paper discusses the different ways of the problem solution, in particular, the possibility of the radiation of several lasing frequencies from the range of the gain medium emission in the total volume of the gain medium that gives a number of advantages in comparison with conventional methods. The scheme of the THz laser with combined multichannel resonant cavity and the method for obtaining a stable frequency difference in each channel are proposed. Developed multichannel laser can be used in conventional schemes of the interferometers and polarimeters, as well as in other measuring systems where the simultaneous generation of the THz radiation through the different channels with the frequency difference within the amplification band of the gain medium is required. This opens up new possibilities for the use of the THz lasers in the measuring systems.

REFERENZEN
  1. Kamenev, Yu.E., Kiseliov, V.K., Kuleshov E.M. et al., Submillimeter Laser Interferometer- Polarimeter for Plasma Diagnostics, Int. J. Infrared and Millimeter Waves. 19(6):835-848.

  2. Scherbov, V.А. and Nesterov, P.K., Doppler frequency shifters of submillimeter wave range, Fisika i technika mm i submm voln, in: Sbornik nauch. Trudov, Nauk. dumka, Kiev: 251-256 (in Russian).

  3. Scherbov, V.А., Кuleshov, Y.М., and Nesterov, P.K., The submillimeter lasers application in interferometers for the diagnostics of high-temperature plasma, Preprint No376, Kharkov: 11 p. (in Russian).

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