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

IPC: G02B6/44 ,  C03C25/12

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).

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

IPC: G02B6/44 ,  C03C25/10 ,  C03C25/24 ,  C09D4/06

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.

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

IPC: G02B6/44 ,  C03C25/10 ,  C03C25/24 ,  C09D4/06 ,  G02B6/16 ,  G02B6/22

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.