The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 12, 1989
Filed:
Mar. 17, 1988
Lauren M Peterson, Ann Arbor, MI (US);
Environmental Research Institute of Michigan, Ann Arbor, MI (US);
Abstract
A waveguide created by thermo-optically induced changes in the refractive index of a medium resultant from absorption of light focused thereupon. The medium absorbs optical energy of a preselected wavelength to cause a refractive index change in response thereto. A pulsed optical switch beam of the preselected wavelength is focused on the medium. The switch beam has an energy level adapted to create an optically induced focal region waveguide therethrough. An optical probe beam is focused on the medium and angularly offset with respect to the pulsed beam. The probe beam is optically confined within the waveguide to emerge from the medium as a diverging, cone-shaped beam.