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:
Sep. 07, 1993
Filed:
Jun. 01, 1992
David S Soane, Piedmont, CA (US);
Soane Technologies, Inc., Hayward, CA (US);
Abstract
A package configuration for the protection/packaging/encapsulation of optical fiber couplers is described. The packaging strategy exploits symmetry in geometrical design while using material with similar thermal expansion properties to minimize thermoelastic stresses in the final assembled parts. When glass fibers are fused together or spliced in a planar waveguides, a complementary, symmetrically shaped glass piece linked to the coupler device by a chemically-tethered and crosslinked polymeric matrix, provides a stress-free as-assembled package that further maintains minimal thermoelastic stresses during temperature cycling. The packaged assembly is thus exceptionally rugged, experiencing little loss and fluctuation of coupling characteristics in installation and use.