Design of a system for conversion of gyrotron output into a gaussian beam

摘要

A quasi-optical system consisting of a quasi-optical antenna, two ellipsoidal mirrors and a filter to block sidelobes can convert four TE_1n mode outputs of the Gyrotron FU IVA into gaussian-like beams with waist size of 16.3 mm. This system can convert three TE_0n mode outputs into bigaussian-like beams with waist size of 23.5 mm in width and 16.4 mm in length.