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:
May. 07, 1996
Filed:
Jun. 28, 1994
Kung-Shiuh Huang, Yorktown Heights, NY (US);
Robert R Shaw, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An efficient light coupling apparatus for interconnecting two optical components. Light radiation from the first optical component, for example an optical light fiber is directed onto the plane surface of the second optical component, for example a passive waveguide. The light is directed onto the second optical component at a convenient angle such that it impinges on the plane surface of the second optical component at an incident angle. An angularly selective coupling means, for example a volume hologram is located between the first and second optical components for coupling a maximum amount of the light at the incident angle.