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Patent Issued for Adhesives for Securing Optical Fibers to Ferrules of Optical Connectors and Methods for Use

July 1, 2014



By a News Reporter-Staff News Editor at Journal of Technology -- According to news reporting originating from Alexandria, Virginia, by VerticalNews journalists, a patent by the inventors Baca, Adra Smith (Rochester, NY); Dawes, Steven Bruce (Corning, NY), filed on February 12, 2013, was published online on June 17, 2014.

The assignee for this patent, patent number 8753021, is Corning Cable Systems LLC (Hickory, NC).

Reporters obtained the following quote from the background information supplied by the inventors: "The present disclosure generally relates to materials and methods for adhering parts within optical connectors, and more specifically to adhesives for use in adhering optical fibers to ferrules within optical connectors, and the methods for use thereof.

"In the assembly of optical connectors, adhesives may be used to bond optical fibers to ferrules. The adhesives are often thermoset resins, such as epoxies. A need exists for alternative optical fiber adhesives or optical fiber adhesives with enhanced bonding properties or otherwise improved performance."

In addition to obtaining background information on this patent, VerticalNews editors also obtained the inventors' summary information for this patent: "In accordance with one embodiment of the present disclosure, an optical fiber may be secured to a ferrule of an optical connector. The method for securing the optical fiber to the ferrule may comprise preparing an adhesive mixture, disposing the adhesive mixture in a fiber-receiving passage defining an inner surface of the ferrule, inserting the optical fiber into the fiber-receiving passage and into contact with the adhesive mixture, and curing the adhesive mixture. Preparing the adhesive mixture comprises forming a base mixture that may comprise a base solvent, an alkyltrialkoxysilane, an aryltrialkoxysilane, and an aryltrifluorosilane. The adhesive mixture may be cured by heating to a temperature of at least about 200.degree. C. and cooling to room temperature or below.

"In accordance with another embodiment of the present disclosure, an adhesive may be prepared. The method for preparing the adhesive may comprise forming a base mixture, heating the base mixture to form a reacted mixture comprising an alcohol, evaporating at least a portion of the alcohol in the reacted mixture to form a resin, mixing a reconstituting solvent with the resin to reconstitute the resin into an adhesive mixture, and curing the adhesive mixture. The base mixture may comprise a base solvent, an alkyltrialkoxysilane, an aryltrialkoxysilane, and an aryltrifluorosilane. The adhesive mixture may be cured by heating to a temperature of at least about 200.degree. C. and cooling to room temperature or below.

"In accordance with yet another embodiment of the present disclosure, an optical connector may comprise a ferrule, an optical fiber, and an adhesive. The optical connector may be used for terminating the optical fiber. The ferrule may comprise a fiber-receiving passage defining an inner surface. The adhesive may be disposed within the ferrule and in contact with the inner surface of the ferrule and the optical fiber. The adhesive may comprise a cured alkyltrialkoxysilane, a cured aryltrialkoxysilane, and a cured aryltrifluorosilane.

"In accordance with yet another embodiment of the present disclosure, an optical connector may comprise a fiber receiving passage, an optical fiber, and an adhesive. The optical connector may be used for terminating the optical fiber. The fiber-receiving passage may define an inner surface. The adhesive may be disposed within the fiber receiving passage and in contact with the inner surface of the fiber receiving passage and the optical fiber. The adhesive may comprise a cured alkyltrialkoxysilane, a cured aryltrialkoxysilane, and a cured aryltrifluoro silane.

"Additional features and advantages of the technology disclosed herein will be set forth in the detailed description which follows, and in part will be readily apparent to those skilled in the art from that description or recognized by practicing the technology as described herein, including the detailed description which follows, the claims, as well as the appended drawings.

"It is to be understood that both the foregoing general description and the following detailed description present embodiments of the technology, and are intended to provide an overview or framework for understanding the nature and character of the technology as it is claimed. The accompanying drawings are included to provide a further understanding of the technology, and are incorporated into and constitute a part of this specification. The drawings illustrate various embodiments and together with the description serve to explain the principles and operations of the technology. Additionally, the drawings and descriptions are meant to be merely illustrative, and are not intended to limit the scope of the claims in any manner."

For more information, see this patent: Baca, Adra Smith; Dawes, Steven Bruce. Adhesives for Securing Optical Fibers to Ferrules of Optical Connectors and Methods for Use. U.S. Patent Number 8753021, filed February 12, 2013, and published online on June 17, 2014. Patent URL: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8753021.PN.&OS=PN/8753021RS=PN/8753021

Keywords for this news article include: Technology.

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Source: Journal of Technology


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