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:
Nov. 25, 2003
Filed:
Dec. 17, 1998
Harry Wayne Presley, Malabar, FL (US);
Harris ESS/CSD, Melbourne, FL (US);
Abstract
The Stand-Off Fusion-terminated optical interface reduces optical reflections thereby increasing return losses that occur when an optical waveguide, including optical fibers, is interfaced to a bulk media of significantly differing refractive index. A small spacer material, or stand-off, is placed between the optical waveguide and the media. The stand-off is index-matched to the optical waveguide thereby eliminating reflections from this interface. The length of the stand-off is chosen so the reflections from the stand-off/media interface are weakly coupled back to the optical waveguide due to diffraction and attenuation losses within the stand-off. The optical waveguide is then fused to the stand-off by focusing a time variable laser beam at the junction of the optical waveguide and the stand-off.