A quasi-optical mode converter for gyrotrons operating in high order modes

M. Blank

doi:10.1117/12.2298596

30 August 1993 A quasi-optical mode converter for gyrotrons operating in high order modes

M. Blank

Proceedings Volume 2104, 18th International Conference on Infrared and Millimeter Waves; 21044K (1993) https://doi.org/10.1117/12.2298596
Event: 18th International Conference on Infrared and Millimeter Waves, 1993, Colchester, United Kingdom

Abstract

A quasi-optical mode converter has been designed to transform to the TE22,6 cylindrical waveguide mode at 110 GHz toa Gaussian beam in free space. The converter consists of an irregular cylindrical waveguide section followed by a step-cutlaunching aperture and several focussing reflectors. The irregular waveguide section, which is designed using coupled modetheory, is used to bunch the radiation into Gaussian bundles prior to the launch. The reflectors that follow are designed withGaussian optics. A rigorous diffraction theory has been developed to analyze the converter system. The converter will bebuilt and tested, and results will be compared to the diffraction theory.

Citation Download Citation

M. Blank "A quasi-optical mode converter for gyrotrons operating in high order modes", Proc. SPIE 2104, 18th International Conference on Infrared and Millimeter Waves, 21044K (30 August 1993); https://doi.org/10.1117/12.2298596

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