Optical cable sealing method and optical cable sealing structure

An optical cable sealing structure comprising:

• an optical cable including an outer jacket that defines an interior space and that has two opposite openings communicating with said interior space, an optical fiber assembly disposed in said interior space and having one end extending out of said interior space through one of said openings of said outer jacket, and a plurality of reinforcing filaments disposed in said interior space between said outer jacket and said optical fiber assembly and having one ends extending out of said interior space through said one of said openings of said outer jacket;
• a reinforcing unit connected to said optical cable and including an outer tubular sleeve that defines an insertion space, and a plurality of first fiber filaments disposed in said insertion space and having one ends extending out of said insertion space, said one end of said optical fiber assembly being inserted into said insertion space and being surrounded by said first fiber filaments;
• and
• an adhesive sealing said one of said openings of said outer jacket and connecting said one ends of said reinforcing filaments and said one ends of said first fiber filaments.

A method of sealing an optical cable which includes an outer jacket defining an interior space, an optical fiber assembly disposed in the interior space, and a plurality of reinforcing filaments disposed in the interior space between the outer jacket and the optical fiber assembly, said method comprising:

• step A:
• forming a hole in the outer jacket such that the hole communicates with the interior space;
• and
• step B:
• introducing an adhesive into the interior space through the hole so as to fix the positions of the optical fiber assembly and the reinforcing filaments, to axially block the interior space, and to seal the hole.