Output coupling of a quasi-optical Fabry-Perot resonator by mean of a diffractive grating in the mm wave range

J. P. Hogge

doi:10.1117/12.2301582

1 December 1990 Output coupling of a quasi-optical Fabry-Perot resonator by mean of a diffractive grating in the mm wave range

J. P. Hogge

Author Affiliations +

Proceedings Volume 1514, 15th International Conference on Infrared and Millimeter Waves; 15144S (1990) https://doi.org/10.1117/12.2301582
Event: 15th International Conference on Infrared and Millimeter Waves, 1990, Orlando, FL, United States

Abstract

In present quasi-optical (Q.O.) gyrotrons, the microwave power is coupled out by edge diffraction. Results of cold tests and hot tests show that the output is non-Gaussian. Recently, we have tested successfully output couplers using a grating reflector which replaces one of the resonator mirrors. This type of coupling produces almost perfect Gaussian output patterns so that one can utilize an additional perfectly reflecting mirror to focus efficiently the output microwave beam into a corrugated HE₁₁ waveguide.

Citation Download Citation

J. P. Hogge "Output coupling of a quasi-optical Fabry-Perot resonator by mean of a diffractive grating in the mm wave range", Proc. SPIE 1514, 15th International Conference on Infrared and Millimeter Waves, 15144S (1 December 1990); https://doi.org/10.1117/12.2301582

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