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. 09, 1989
Filed:
Jan. 17, 1986
Byoung Y Kim, Menlo Park, CA (US);
Wayne V Sorin, Stanford, CA (US);
Herbert J Shaw, Stanford, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Stanford, CA (US);
Abstract
An all fiber mode selector comprises a single-mode optical fiber and a double-mode optical fiber, each having a facing surface formed on one side of the cladding. The facing surfaces are juxtaposed in close facing relationship. The fibers are selected so that an optical signal propagating in the LP.sub.11 propagation mode of the double-mode optical fiber propagates at substantially the same phase velocity as an optical signal propagating in the LP.sub.01 propagation mode of the single-mode optical fiber. The evanescent fields of the two fibers interact to couple optical energy from the LP.sub.11 mode of the double-mode optical fiber to the LP.sub.01 mode of the single-mode optical fiber and vice versa.