Optical waveguides – Optical transmission cable – Ribbon cable
Reexamination Certificate
2001-08-31
2004-02-10
Nasri, Javaid H. (Department: 2839)
Optical waveguides
Optical transmission cable
Ribbon cable
Reexamination Certificate
active
06690867
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to optical interconnect components and/or assemblies and, more particularly, to high performance optical interconnect components and/or assemblies.
BACKGROUND OF THE INVENTION
Optical communication systems include optical fibers that transmit signals, for example, voice, video and/or data information. Optical fibers are capable of transmitting signals over a long distance with relatively small losses. Optical fibers preferably include a silica-based core that is operative to transmit light and is surrounded by a silica-based cladding generally having a lower index of refraction than the core. Generally, a soft primary coating surrounds the cladding, and a relatively rigid secondary coating surrounds the primary coating. Optical fibers can be single-mode or multi-mode and are, for example, commercially available from Corning Inc. of Corning, N.Y.
For practicality, optical communication systems require interconnects or jumpers between optical fibers and optical equipment and/or other optical fibers for quickly and conveniently connecting sections of fiber together, and rearranging if necessary. For example, a jumper cable may interconnect an optical cable with a transmitter or a receiver.
SUMMARY OF THE INVENTION
The present invention is directed to a fiber optic assembly including a plurality of single-mode optical fibers, the plurality of single-mode optical fibers having a core, a cladding, and a coating, at least one flexible polymeric material, the flexible polymeric material being associated with at least a portion of the plurality of single-mode optical fibers, and the plurality of single-mode optical fibers having a cladding outer diameter of about 125.0 &mgr;m±0.3 &mgr;m.
The present invention is also directed to a fiber optic ribbon including eight single-mode optical fibers, the eight single-mode optical fibers having a core, a cladding, and a coating, the eight single-mode optical fibers being associated with a curable matrix, a width of the ribbon being about 2172 &mgr;m or less, a height of the ribbon being about 360 &mgr;m or less, the ribbon having a planarity of about 50 &mgr;m or less, the ribbon having distal single-mode optical fibers, the distal single-mode optical fibers having a center to center distance of about 1834 &mgr;m or less, and the eight single-mode optical fibers having a cladding outer diameter of about 125.0 &mgr;m±0.1 &mgr;m.
The present invention is further directed to a fiber optic ribbon including twelve single-mode optical fibers, the twelve single-mode optical fibers having a core, a cladding, and a coating, the twelve single-mode optical fibers being associated with a curable matrix, a width of the ribbon being about 3220 &mgr;m or less, a height of the ribbon being about 360 &mgr;m or less, the ribbon having a planarity of about 75 &mgr;m or less, the ribbon having distal single-mode optical fibers, the distal single-mode optical fibers having a center to center distance of about 2882 &mgr;m or less, and the twelve single-mode optical fibers having a cladding outer diameter of about 125.0 &mgr;m±0.1 &mgr;m.
The present invention also includes a fiber optic pigtail including at least one single-mode optical fiber, the at least one single-mode optical fiber having a core, a cladding, a coating, and a first end, at least one ferrule being attached to the first end of at least one single-mode optical fiber, the single-mode optical fiber having a cladding outer diameter of about 125.0 &mgr;m±0.3 &mgr;m, a core to cladding concentricity of about 0.2 &mgr;m or less, and a mode-field diameter of 9.2 &mgr;m±0.3 &mgr;m at 1310 nm.
The present invention is also directed towards a fiber optic jumper cable including at least one single-mode optical fiber having a core, a cladding, a first end, and a second end, a first ferrule, a second ferrule, the first end of the at least one single-mode optical fiber being attached to the first ferrule and the second end of the at least one single-mode optical fiber being attached to the second ferrule, the at least one single-mode optical fiber having a cladding outer diameter of about 125.0 &mgr;m±0.3 &mgr;m, a core to cladding concentricity of about 0.2 &mgr;m or less, and a mode-field diameter of about 9.2 &mgr;m±0.3 &mgr;m at 1310 nm.
The present invention is also directed to a tight-buffered optical fiber assembly including at least one single-mode optical fiber having a core, a cladding, a first end, and a second end, a tight-buffered jacket, a first ferrule, a portion of the tight-buffered jacket surrounding a portion of the at least one single-mode optical fiber, the first end of the at least one single-mode optical fiber being attached to the first ferrule, and the at least one single-mode optical fiber having a cladding outer diameter of about 125.0 &mgr;m±0.3 &mgr;m, a core to cladding concentricity of about 0.2 &mgr;m or less, and a mode-field diameter of about 9.2 &mgr;m±0.3 &mgr;m at 1310 nm.
The present invention also includes a method of manufacturing a fiber optic assembly including the steps of selecting a plurality of single-mode optical fibers having a cladding outer diameter of about 125.0 &mgr;m±0.3 &mgr;m, and applying at least one flexible polymeric material to at least a portion of said plurality of single-mode optical fibers.
The present invention is also directed towards a flexible optical circuit including at least one single-mode optical fiber having a core, a cladding, a first end, and a second end, a first flexible substrate, a second flexible substrate, the at least one single-mode optical fiber being interposed between the first substrate and the second substrate, and the at least one single-mode optical fiber having a cladding outer diameter of about 125.0 &mgr;m±0.3 &mgr;m, a core to cladding concentricity of about 0.2 &mgr;m or less, and a mode-field diameter of about 9.2 &mgr;m±0.3 &mgr;m at 1310 nm.
REFERENCES:
patent: 4900126 (1990-02-01), Jackson et al.
patent: 5675686 (1997-10-01), Rosenmayer et al.
patent: 5682672 (1997-11-01), Taniguchi et al.
patent: 5703973 (1997-12-01), Mettler et al.
patent: 5737467 (1998-04-01), Kato et al.
patent: 5754721 (1998-05-01), Pan
patent: 5905828 (1999-05-01), Jungerman
patent: 5937133 (1999-08-01), Moss et al.
patent: 5945173 (1999-08-01), Hattori et al.
patent: 6004042 (1999-12-01), Million et al.
patent: 6101423 (2000-08-01), Csipkes et al.
patent: 6118917 (2000-09-01), Lee et al.
patent: 6160614 (2000-12-01), Unno
patent: 6269210 (2001-07-01), Yagi et al.
patent: 6370293 (2002-04-01), Emmerich et al.
patent: 6421487 (2002-07-01), Hutton et al.
patent: 2002/0131719 (2002-09-01), Grois et al.
patent: 0953857 (1999-11-01), None
patent: 1065544 (2001-01-01), None
USCONC document from Internet Site dated Jun. 28, 2001.
USCONC document entitled “Concours optical Circuits” dated Jun. 2001.
“Corning SMF-28 Optical Fiber Product Information” dated Apr. 2001.
“Riser Ribbon Interconnect Cables” dated Feb. 2001.
MM29 “Corning Optical Fiber Measurement Method—Coating Geometry” dated Mar. 2000.
MM15 “Corning Optical Fiber Measurement Method—Cutoff Wavelength” dated Feb. 2000.
MM16 “Corning Optical Fiber Measurement Method—Mode-field Diameter” dated Feb. 2000.
MM28 “Corning Optical Fiber Measurement Method—Glass Geometry—Glass Geometry” dated Jan. 2000.
Melton Stuart R.
Torrey Scott M.
Carroll Jr. Michael E.
Corning Cable Systems LLC
Nasri Javaid H.
LandOfFree
Optical interconnect assemblies and methods therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical interconnect assemblies and methods therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical interconnect assemblies and methods therefor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3286621