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Title: 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. 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.

Inventors:
 [1];  [1];  [2]
  1. Livermore, CA
  2. Danville, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
868302
Patent Number(s):
5115482
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
optical; apparatus; conversion; whispering-gallery; modes; free; space; gaussian; beam; converter; efficient; millimeter; wavelength; gyrotron; output; linearly; polarized; free-space; gaussian-like; mode-converting; taper; mirror; optics; azimuthal; tilt; eliminate; phi; component; propagation; vector; twist; reflector; polarize; third; constant; phase; surface; optical apparatus; output beam; linearly polarized; free space; millimeter wavelength; millimeter wave; efficient conversion; third mirror; optical converter; space gaussian; /385/315/333/359/

Citation Formats

Stallard, Barry W, Makowski, Michael A, and Byers, Jack A. Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam. United States: N. p., 1992. Web.
Stallard, Barry W, Makowski, Michael A, & Byers, Jack A. Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam. United States.
Stallard, Barry W, Makowski, Michael A, and Byers, Jack A. Wed . "Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam". United States. https://www.osti.gov/servlets/purl/868302.
@article{osti_868302,
title = {Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like beam},
author = {Stallard, Barry W and Makowski, Michael A and Byers, Jack A},
abstractNote = {An optical converter for efficient conversion of millimeter wavelength whispering-gallery gyrotron output into a linearly polarized, free-space Gaussian-like beam. 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {1}
}

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