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公开(公告)号:JP2002031749A
公开(公告)日:2002-01-31
申请号:JP2000196336
申请日:2000-06-29
Applicant: LUCENT TECHNOLOGIES INC
Inventor: KUCK VALERIE JEANNE , SIMPKINS PETER GERALD , TORNQVIST HAKAN
Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing method of an optical fiber, by which a desired delamination resistance can be obtained. SOLUTION: The delamination resistance of a coated optical fiber is desirably measured at two different temperatures. In particular, one is an ambient temperature in which the fiber is advantageously used, e.g. room temperature, and the other is a temperature that gives damage to the fiber used outdoors (block B). The delamination resistance in the ambient temperature is compared with the value of a preset target delamination resistance (block C). The delamination resistance in a high temperature is compared with the value that easily gives damage at a preset low target value. A coasted optical fiber having a delamination resistance outside the range of preset target values is rejected as a product but is used for application requiring a different delamination resistance (block D).
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公开(公告)号:JP2001056423A
公开(公告)日:2001-02-27
申请号:JP2000196334
申请日:2000-06-29
Applicant: LUCENT TECHNOLOGIES INC
Inventor: HALE ARTURO , TORNQVIST HAKAN , ALOISIO CHARLES JOSEPH , KUCK VALERIE JEANNE , SIMPKINS PETER GERALD
Abstract: PROBLEM TO BE SOLVED: To obtain an optical fiber coated with coating having a high modulus of elasticity and high heat characteristics for easy removal from the optical fiber by applying protective coating having the room temperature modulus of elasticity of a specific value and high temperature release layer resistance of below specific % of the room temperature release layer resistance. SOLUTION: A preform is supplied to a furnace and as the preform passes the furnace, a glass fiber 12 is drawn from a molten material. After the glass fiber 12 is drawn from the molten material, two layers of the protective coating systems consisting of a radiation curing high-polymer material are applied to the glass fiber 12. The inside layer 14 comes into contact with the glass fiber 12 at the boundary 13 between the glass and the coating and is called as a primary coating. The outer layer 15 is called as the secondary coating and encloses the inner layer 14. The primary coating of the high-polymer material has the on-site modulus of elasticity within a range from 9 to 500 psi at 20 deg.C and has the first release layer resistance at 20 deg.C and the second release layer resistance at a temperature within a range of 100 to 2000 deg.C below 40% of the first release layer resistance.
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公开(公告)号:JP2000111767A
公开(公告)日:2000-04-21
申请号:JP27206099
申请日:1999-09-27
Applicant: LUCENT TECHNOLOGIES INC
Inventor: ALOISIO CHARLES JOSEPH JR , HALE ARTURO , KUCK VALERIE JEANNE , SIMPKINS PETER GERALD , TABADDOR PRIYA L , TAYLOR CARL RAYMOND
Abstract: PROBLEM TO BE SOLVED: To provide a coating material which ensures little residue on the glass of glass fibers after peeling from an array of the glass fibers while maintaining satisfactory adhesion to the fibers so as not to cause delamination by specifying the equilibrium elastic modulus and tensile strength of a primary coating. SOLUTION: An optical fiber 10 coated with a primary coating material 14 comprising a photosetting polymer material has a slender glass fiber 12 capable of propagating light waves in the longitudinal direction. The primary coating has 120-500 psi equilibrium elastic modulus at 20 deg.C and
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公开(公告)号:JPH11343148A
公开(公告)日:1999-12-14
申请号:JP23286898
申请日:1998-08-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor: KUCK VALERIE JEANNE , PACZKOWSKI MARK ANTHONY , SIMPKINS PETER GERALD
Abstract: PROBLEM TO BE SOLVED: To provide a method for coating an optical fiber which increases the speed at which the optical fiber passes the inside of a coating bath while minimizing the taking in of air bubbles into a coating layer of the optical fiber. SOLUTION: In the coating method for the optical fiber, a transducer 48 is arranged in a vessel 40 toward the inlet port 44 of the vessel 40 and this transducer 48 is so activated that the apex 56 of the wave formed by the transducer 48 forms a wave 50 heading toward the inlet port 44. Consequently, the negative meniscus formed at the time of drawing the optical fiber in the vessel 40 is offset by the wave 50.
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公开(公告)号:AU4252100A
公开(公告)日:2001-01-04
申请号:AU4252100
申请日:2000-06-19
Applicant: LUCENT TECHNOLOGIES INC
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公开(公告)号:DE69801730T2
公开(公告)日:2002-07-04
申请号:DE69801730
申请日:1998-08-11
Applicant: LUCENT TECHNOLOGIES INC
Inventor: KUCK VALERIE JEANNE , SIMPKINS PETER GERALD , PACZKOWSKI MARK ANTHONY
Abstract: Optical fibre (24) is drawn through a bath (44) of coating material from an inlet to an outlet (46) where a curing device hardens the coating material adhering to the fibre. A transducer (48), submerged in the coating material, is aimed toward the fibre inlet to form a wave (56) in the bath, the apex of which is at the point that the fibre enters the bath. Also claimed is the method as above in which the coating material is a liquid polymer and the transducer (48) is surrounded by a curved housing (52) which directs the output from the transducer to form a wave (56) of controlled amplitude, shape, or direction.
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公开(公告)号:DE69801730D1
公开(公告)日:2001-10-25
申请号:DE69801730
申请日:1998-08-11
Applicant: LUCENT TECHNOLOGIES INC
Inventor: KUCK VALERIE JEANNE , SIMPKINS PETER GERALD , PACZKOWSKI MARK ANTHONY
Abstract: Optical fibre (24) is drawn through a bath (44) of coating material from an inlet to an outlet (46) where a curing device hardens the coating material adhering to the fibre. A transducer (48), submerged in the coating material, is aimed toward the fibre inlet to form a wave (56) in the bath, the apex of which is at the point that the fibre enters the bath. Also claimed is the method as above in which the coating material is a liquid polymer and the transducer (48) is surrounded by a curved housing (52) which directs the output from the transducer to form a wave (56) of controlled amplitude, shape, or direction.
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公开(公告)号:CA2312535A1
公开(公告)日:2000-12-29
申请号:CA2312535
申请日:2000-06-27
Applicant: LUCENT TECHNOLOGIES INC
Inventor: TORNQVIST HAKAN , HALE ARTURO , KUCK VALERIE JEANNE , SIMPKINS PETER GERALD , ALOISIO CHARLES JOSEPH JR
Abstract: In accordance with the invention, an optical fiber is provided with a protective coating having enhanced thermal characteristics for easy removal from the optical fiber. In particular, at elevated temperatures used in stripping, the delamination resistance drops to low levels substantially independent of modulus. This permits fabrication of a protectively coated fiber which has relatively high modulus and delamination resistance at room temperature but, due to its enhanced thermal characteristics, is nonetheless relatively easy to strip at elevated temperatures. Thus, for example, applicants can provide a protectively coated optical fiber or ribbon with a room temperature modulus of at least 90 psi, and a high temperature delamination resistance that is less than 40% of the room-temperature delamination resistance and preferably less than 30%. Coatings based on a polyether backbone and non-polar monomers are preferred.
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