Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam
Abstract
An optical converter for efficient conversion of millimeter wavelength whispering-gallery gyrotron output into a linearly polarized, free-space Gaussian-like beam is described. The converter uses a mode-converting taper and three mirror optics. The first mirror has an azimuthal tilt to eliminate the k[sub [phi]] component of the propagation vector of the gyrotron output beam. The second mirror has a twist reflector to linearly polarize the beam. The third mirror has a constant phase surface so the converter output is in phase. 20 figs.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7071914
- Patent Number(s):
- 5115482
- Application Number:
- PPN: US 7-711693
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 7 Jun 1991
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING; MICROWAVE AMPLIFIERS; MODE CONVERSION; MICROWAVE RADIATION; MIRRORS; POLARIZATION; AMPLIFIERS; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; EQUIPMENT; MICROWAVE EQUIPMENT; RADIATIONS; 426000* - Engineering- Components, Electron Devices & Circuits- (1990-)
Citation Formats
Stallard, B W, Makowski, M A, and Byers, J A. Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam. United States: N. p., 1992.
Web.
Stallard, B W, Makowski, M A, & Byers, J A. Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam. United States.
Stallard, B W, Makowski, M A, and Byers, J A. Tue .
"Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam". United States.
@article{osti_7071914,
title = {Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam},
author = {Stallard, B W and Makowski, M A and Byers, J A},
abstractNote = {An optical converter for efficient conversion of millimeter wavelength whispering-gallery gyrotron output into a linearly polarized, free-space Gaussian-like beam is described. The converter uses a mode-converting taper and three mirror optics. The first mirror has an azimuthal tilt to eliminate the k[sub [phi]] component of the propagation vector of the gyrotron output beam. The second mirror has a twist reflector to linearly polarize the beam. The third mirror has a constant phase surface so the converter output is in phase. 20 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {5}
}