The gyrotron – a natural source of high-power orbital angular momentum millimeter-wave beams

M. Thumm, A. Sawant, M.S. Choe, E.M. Choi, A.G. Litvak
2017 EPJ Web of Conferences  
Orbital angular momentum (OAM) of electromagnetic-wave beams provides further diversity to multiplexing in wireless communication. The present report shows that higher-order mode gyrotrons are natural sources of highpower OAM millimeter (mm) wave beams. The welldefined OAM of their rotating cavity modes operating at near cutoff frequency has been derived by photonic and electromagnetic wave approaches.
doi:10.1051/epjconf/201714904014 fatcat:tdkwkld7wrcz7lnzdukqk2yp6u