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U.S. Department of Energy
Office of Scientific and Technical Information

Optical apparatus for conversion of whispering-gallery modes into a free space gaussian like bean

Patent ·
OSTI ID:5020618
This patent describes an optical apparatus. It comprises an aperture at the end of a tubular waveguide, and first, second, and third mirrors having reflective surfaces and arranged along an axis so that the axis passes through the aperture and the three mirrors wherein; the first mirror has a central opening which the axis passes through and is positioned away from the waveguide in front of the aperture: the second mirror has a central opening which the axis passes through and is positioned closer to the aperture than the first mirror; the third mirror is solid where the axis passes through and is positioned farther from the aperture than the first mirror.
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
US 5115482; A
Application Number:
PPN: US 7-711693
OSTI ID:
5020618
Country of Publication:
United States
Language:
English