Optical waveguides – Optical fiber waveguide with cladding – Utilizing multiple core or cladding
Reexamination Certificate
2008-04-22
2008-04-22
Connelly-Cushwa, Michelle (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
Utilizing multiple core or cladding
C118S125000, C427S163200
Reexamination Certificate
active
07362940
ABSTRACT:
A guide hole guides a primary-coated optical fiber to a tubular inlet hole. An inner diameter of the guide hole is larger than that of the tubular inlet hole. An inner diameter of the tubular inlet hole is in a range from 1.5 times to 2.0 times that of the primary-coated optical fiber. A length of the tubular inlet hole is in a range from 1.0 mm to 2.0 mm. A depth of the guide hole is in a range from 2.0 mm 9.0 mm. A relation B≦A is satisfied, with B equal to or larger than 7.0 mm, where A is an inner diameter of a leading edge of the guide hole continued to a trailing edge of the tubular inlet hole, and B is an inner diameter of a trailing edge of the guide hole.
REFERENCES:
patent: 2006/0016393 (2006-01-01), Fujimaki et al.
patent: 8-239246 (1996-09-01), None
Kashihara Kazuhisa
Song Min-suk
Tateishi Toshiaki
Chu Chris
Connelly-Cushwa Michelle
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
The Furukawa Electric Co. Ltd.
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