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Telecommunications and Radio Engineering
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ISSN Online: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v59.i7-9.120
9 pages

Formation of a Beam with a Uniform Intensity Distribution of Radiation in a Waveguide Quasi-Optical Resonator with an Amplitude-Stepped Mirror

O. V. Gurin
V. Karazin National University of Kharkiv, 4, Svoboda Sq., Kharkiv, 61077
V. A. Maslov
V. Karazin National University of Kharkiv, 4 Svobody Sq., Kharkiv 61022, Ukraine
V. A. Svich
V. Karazin National University of Kharkiv, 4, Svoboda Sq., Kharkiv, 61077
A. N. Topkov
V. Karazin Kharkiv National University 4, Svoboda Sq., 61077 Kharkiv, Ukraine
Ye.V. Fursova
V. Karazin Kharkov National University, 4, Svoboda Sq., Kharkov, 61077, Ukraine

ABSTRACT

The method of obtaining non-Gaussian light beams with a uniform intensity profile in the waveguide quasi-optical resonator (WQR) is described. It is based on the self-imaging properties of multimode waveguides and using the non-uniform mirror with the discretely distributed absorbing sections. The theoretical model and calculation algorithm of the low-loss Fourier-mode properties with uniform intensity distribution at the output mirror of WQR are developed with application of the eigenmodes and the Fourier-optics methods. The conditions of the Fourier-mode existence and stability of its characteristics are established by changing the resonator geometry and its non-uniform mirror parameters.


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