Published September 1990
| Version v1
Report
Output coupling of a quasi-optical Fabry-Perot resonator by mean of a diffractive grating in the mm wave range
- 1. Ecole Polytechnique Federale, Lausanne (Switzerland). Centre de Recherche en Physique des Plasma (CRPP)
- 2. Stuttgart Univ. (Germany, F.R.). Inst. fuer Plasmaforschung
Description
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. (author) 7 refs., 4 figs
Additional details
Publishing Information
- Imprint Title
- Invited and contributed papers presented at the 15. international conference on infrared and millimeter waves
- Imprint Pagination
- 23 p.
- Journal Page Range
- p. 17-23.
- Report number
- LRP--418/90
Conference
- Title
- 15. international conference on infrared and millimeter waves.
- Dates
- 10-14 Dec 1990.
- Place
- Buena Vista Lake, FL (USA).
INIS
- Country of Publication
- Switzerland
- Country of Input or Organization
- Switzerland
- INIS RN
- 22013954
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference, Numerical Data
- Descriptors DEI
- CAVITIES; DIFFRACTION; DIFFRACTION GRATINGS; EFFICIENCY; ELECTROMAGNETIC FIELDS; EXPERIMENTAL DATA; GAUSS FUNCTION; HARMONICS; MICROWAVE RADIATION; MIRRORS; RESONATORS; WAVEGUIDES
- Descriptors DEC
- COHERENT SCATTERING; DATA; ELECTROMAGNETIC RADIATION; EQUIPMENT; FUNCTIONS; INFORMATION; NUMERICAL DATA; OSCILLATIONS; RADIATIONS; SCATTERING