公开(公告)号：JPH1172667A

公开(公告)日：1999-03-16

申请号：JP18364898

申请日：1998-06-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SHEU JIM JENQTSONG

IPC: G02B6/44

Abstract: PROBLEM TO BE SOLVED: To obtain an optical fiber cable which lessens oil sepn. and raises a cable dripping temp., has a high viscosity and critical bending stress and has the low viscosity and critical bending stress to facilitate the process and to lessen optical loss by using such a packing material which satisfies many requirements like those of a drip test of an industrial standard. SOLUTION: The cable 20 having the improved packing material in cores has at least one cores 22 consisting of at least one optical fiber transmission media, the improved packing material 26 arranged around the cores and a sheath system 27 arranged around the cores. The packing material 26 may be succeeded in the standard of the ETA/TIA standard FOTP-81 at 80 deg.C without adversely affecting the performance characteristic on the other operation of the cable.

公开(公告)号：JP2001188153A

公开(公告)日：2001-07-10

申请号：JP2000272662

申请日：2000-09-08

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SHEU JIM JENQTSONG

IPC: G02B6/44 ,  H01B7/282 ,  H01B7/288 ,  H01B7/295 ,  H01B11/00

Abstract: PROBLEM TO BE SOLVED: To provide a cable containing fibers for imparting impervious and fire-retardant characteristics to the cable. SOLUTION: The preferable embodiment of this cable includes a core, a covering enclosing the core and the commercially marketed ultra-water absorptive fibers arranged between the core and the covering and within the core. The fibers are applied to ribbons and are disposed between the core and the covering. The ribbons contain first layers and the ultra-water absorptive fibers. The ultra-water absorptive fibers are applied to the first layers. The first layers are preferably formed, among others, of nonwoven fabric polyester materials subjected to spinning and adhering, woven fabrics formed by spinning and adhering of nylon, nonwoven glass, nonwoven fabrics formed by melting and spraying of polypropylene, woven fabrics formed by spinning and adhering of polyurethane or TCF celluose woven fabrics. Further, the fibers have a moisture content greater than about zero (0)% by weight, by which the fire-retardant characteristics of the cable are preferably improved.

公开(公告)号：JP2001133670A

公开(公告)日：2001-05-18

申请号：JP2000279011

申请日：2000-09-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HARDWICK NATHAN E III ,  JACKSON KENNETH WADE ,  LEVER CLYDE JEFFERSEN JR ,  NORRIS RICHARD ,  SHEU JIM JENQTSONG ,  SMALL RICHARD DALTON JR ,  TAYLOR CARL RAYMOND ,  WEIMANN PETER A

IPC: G02B6/44 ,  H01B7/17 ,  H01B11/00

Abstract: PROBLEM TO BE SOLVED: To provide a package to be a buffer for a laminate by storing the laminate of optical fiber ribbons in a buffer coating, which has a relatively soft inner part and a relatively hard outer part. SOLUTION: This laminate 32a of optical fiber ribbons 34 is stored in a buffer coating 36a, which has a relatively soft inner part and a relatively hard outer part. The inner part has an inside surface, which is extended around a passage and defines the passage which passage stores the laminate 32a and is extended in the lengthwise direction. This inside surface is brought into close contact with the laminate 32a. The outer part is extended around the inner part, closely defined with the inner part and is brought into close contact with the inner part and has a modulus of elasticity higher than that of the inner part. The inner part has an outside surface, which is extended around the passage and is separated from the passage. The outer part has an inside surface which is extended around outside surface of the inner part, closely defined with respect to the outside surface, brought into close contact with the outside surface and is connected to the outside surface, and thus the buffer coating 36a has a multi layered structure.

公开(公告)号：JP2001194566A

公开(公告)日：2001-07-19

申请号：JP2000279228

申请日：2000-09-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HARDWICK NATHAN E ,  JACKSON KENNETH WADE ,  LEVER CLYDE JEFFERSON JR ,  NORRIS RICHARD ,  SHEU JIM JENQTSONG ,  SMALL RICHARD DALTON JR ,  TAYLOR CARL RAYMOND ,  WEIMANN PETER A

IPC: G02B6/44 ,  H01B11/00

Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber cable incorporating different sized multiple stacks of optical fiber ribbons. SOLUTION: The stacks are composed of a central stack positioned at the nearly center within the passage of a jacket and peripheral stacks positioned radially around the central stack. The difference exists between the dimension of the central stack and the dimension of one or plural peripheral stacks. A buffer container individually incorporating the peripheral stacks is intertwined in the longitudinal direction around the central stack. Inner surfaces extending in the longitudinal direction are included in respective buffer containers, these inner surfaces extend around the passage extending in the longitudinal direction, and the passage is demarcated by these inner surfaces. Individual stacks are incorporated in the passage. The considerable parts in the periphery of respective peripheral stacks are surely bounded by respective inner surfaces which are meshed with these parts.

公开(公告)号：JP2001124965A

公开(公告)日：2001-05-11

申请号：JP2000279013

申请日：2000-09-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： HARDWICK NATHAN E III ,  JACKSON KENNETH WADE ,  LEVER CLYDE JEFFERSEN JR ,  NORRIS RICHARD ,  SHEU JIM JENQTSONG ,  SMALL RICHARD DALTON JR ,  TAYLOR CARL RAYMOND ,  WEIMANN PETER A

IPC: G02B6/44 ,  H01B7/00 ,  H01B11/00

Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber group closely connected by an easily removable buffer coating and a related optical fiber cable. SOLUTION: A buffer coating 36a is extended around a passage extended in the longitudinal direction for housing an optical fiber ribbon laminated object 32a and is provided with an inner surface, extended in the longitudinal direction for stipulating the passage. The inner surface is in close contact with the laminated object at a boundary, and the buffer coating 36a is removed easily from the laminated object 32a. Since the buffer coating 36a is constituted of a thin and easy-to-tear material, the buffer coating 36a is removed easily from the laminated object. Also, since the buffer coating 36a stipulates a weakened part extending in the longitudinal direction and the weakened part can be torn apart more easily than the remaining part of the buffer coating 36a, the buffering coating 36a is removed easily from the laminated object.

公开(公告)号：JP2000131572A

公开(公告)日：2000-05-12

申请号：JP29577999

申请日：1999-10-18

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BROWN ROBERT J ,  LEVER CLYDE JEFFERSON JR ,  SHEU JIM JENQTSONG ,  WEST DANNY EUGENE

IPC: G02B6/44

Abstract: PROBLEM TO BE SOLVED: To obtain a central core optical fiber cable of a low cabling loss having a stack of longitudinally twisted ribbons. SOLUTION: Plural optical fiber ribbons are stacked in an array form and are arranged within a tube existing at the center of the cable. A lubricating material is applied between the adjacent ribbons of the stack 200 in order to integrally holds the plural ribbons and to make the slip movement between the ribbons easy. The stack 200 of the ribbons is twisted along the longitudinal direction of the cable. The lubricant is alpha olefin oil. The stack 200 of the ribbons is twisted to one direction during a first prescribed distance and is then twisted in a reverse direction during a second prescribed distance. These distances are nearly equal to each other. An electrostatically charged powder is otherwise used as the lubricant.

公开(公告)号：JPH11256054A

公开(公告)日：1999-09-21

申请号：JP32872298

申请日：1998-11-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BAIR HARVEY EDWARD ,  SHEU JIM JENQTSONG

IPC: C08L53/00 ,  C08L101/00 ,  H01B7/28 ,  H01B7/282

Abstract: PROBLEM TO BE SOLVED: To provide a cable connector contg. a sealing construction element which protects esp. a box joint connection from moisture. SOLUTION: A sealing material 125 of the invention is used in a cable connector 100 and comprises a mixture of about 70 wt.% to about 98 wt.% microorganism-resistant extender and about 1 wt.% to about 15 wt.% block copolymer. Thus, the sealing material protects the box joint connection from the interruption of signals caused by water and wrecks conveyed onto a cable by insects. In another embodiment, the sealing material is a mixture of a styrene rubber, a block copolymer, and a microorganism-resistant extender. A hydrophobic microorganism-resistant extender contains a branched hydrocarbon compd. and a silicon compd. The sealing material optionally contains polyethylene, which improves the flow resistance of the material.

公开(公告)号：AU7320098A

公开(公告)日：1999-01-14

申请号：AU7320098

申请日：1998-06-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SHEU JIM JENQTSONG

IPC: G02B6/44 ,  G02B6/20

Abstract: A cable 20 of this invention includes at least one core 22 comprising a plurality of coated optical fibers 25 and a filling material 26 which is disposed about the fibers 25. Typically, the fibers 25 and the filling material 26 are disposed within a tubular member 28 which is disposed within a sheath system 27. The sheath system 27 may include longitudinally extending strength members 30 in addition to a plastic jacket 32. The filling material made in accordance with the preferred embodiment of the present invention is one which comprises at least two different hydrocarbons as an oil constituent and/or two different fumed silicas as part of a thickening agent. The hydrocarbon(s) may be a synthetic oil such as polyalphaolefin, for example, or a mineral oil, or a combination of synthetic oils and/or mineral oils. The combination of oils is used to help low temperatures properties as well as better incorporate a gelling system which may include a copolymer. A copolymer is used mainly to reduce oil separation. Additionally, a combination of gelling agents such as mixtures of two different fumed silicas is used to build a more stable and desirable network structure in the filling material. The novel combination of oils and fumed silicas produces a filling material capable of passing EIA/TIA Standard FOTP-81, Compound Flow (Drip) Test for Filled Optical Cable, Section 8 up to 80 DEG C and has a critical-yield stress of less than about 0.002 psi.

公开(公告)号：CA2238476A1

公开(公告)日：1999-01-01

申请号：CA2238476

申请日：1998-05-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： SHEU JIM JENQTSONG

IPC: G02B6/44 ,  G02B6/16

Abstract: A cable 20 of this invention includes at least one core 22 comprising a pluralit y of coated optical fibers 25 and a filling material 26 which is disposed about th e fibers 25. Typically, the fibers 25 and the filling material 26 are disposed within a t ubular member 28 which is disposed within a sheath system 27. The sheath system 27 may include longitudinally extending strength members 30 in addition to a plasti c jacket 32. The filling material made in accordance with the preferred embodiment of the present invention is one which comprises at least two different hydrocarbons as an oil constituent and/or two different fumed silicas as part of a thickening ag ent. The hydrocarbon(s) may be a synthetic oil such as polyalphaolefin, for example, or a mineral oil, or a combination of synthetic oils and/or mineral oils. The combina tion of oils is used to help low temperatures properties as well as better incorporate a gelling system which may include a copolymer. A copolymer is used mainly to reduce oil separation. Additionally, a combination of gelling agents such as mix tures of two different fumed silicas is used to build a more stable and desirable netw ork structure in the filling material. The novel combination of oils and fumed silic as produces a filling material capable of passing EIA/TIA Standard FOTP-81, Compound Flow (Drip) Test for Filled Optical Cable, Section 8 up to 80.degree.C and has a critical-yield stress of less than about 0.002 psi.

公开(公告)号：DE69800110D1

公开(公告)日：2000-05-04

申请号：DE69800110

申请日：1998-11-10

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BAIR HARVEY EDWARD ,  SHEU JIM JENQTSONG

IPC: C08L53/00 ,  C08L101/00 ,  H01B7/28 ,  H01B7/282