公开(公告)号：US11618709B2

公开(公告)日：2023-04-04

申请号：US17376284

申请日：2021-07-15

Applicant: CORNING INCORPORATED

Inventor： Yacob Mesfin Argaw ,  Nikolaos Pantelis Kladias ,  Robert Clark Moore ,  Bruce Warren Reding ,  Chunfeng Zhou

IPC: C03B37/027

Abstract: A method of processing an optical fiber includes drawing the optical fiber from a heated glass source, reheating the optical fiber, and cooling the optical fiber under vacuum at a cooling rate less than the cooling rate of the optical fiber in air at 25° C. and 1 atm. Cooling the optical fiber under vacuum is conducted after reheating the optical fiber. Cooling the optical fiber under vacuum reduces the rate of heat transfer from the optical fiber, which may enable further relaxation of the glass and reduction in the fictive temperature of the optical fiber. A system for processing an optical fiber includes a furnace containing a fiber preform, a first positioner, a reheating device, and a treatment device downstream of the reheating device, the treatment device operable to cool the optical fiber under vacuum to reduce the rate of heat transfer from the optical fiber.

公开(公告)号：US20210340052A1

公开(公告)日：2021-11-04

申请号：US17376284

申请日：2021-07-15

Applicant: CORNING INCORPORATED

Inventor： Yacob Mesfin Argaw ,  Nikolaos Pantelis Kladias ,  Robert Clark Moore ,  Bruce Warren Reding ,  Chunfeng Zhou

IPC: C03B37/027

Abstract: A method of processing an optical fiber includes drawing the optical fiber from a heated glass source, reheating the optical fiber, and cooling the optical fiber under vacuum at a cooling rate less than the cooling rate of the optical fiber in air at 25° C. and 1 atm. Cooling the optical fiber under vacuum is conducted after reheating the optical fiber. Cooling the optical fiber under vacuum reduces the rate of heat transfer from the optical fiber, which may enable further relaxation of the glass and reduction in the fictive temperature of the optical fiber. A system for processing an optical fiber includes a furnace containing a fiber preform, a first positioner, a reheating device, and a treatment device downstream of the reheating device, the treatment device operable to cool the optical fiber under vacuum to reduce the rate of heat transfer from the optical fiber.

公开(公告)号：US11097976B2

公开(公告)日：2021-08-24

申请号：US16418075

申请日：2019-05-21

Applicant: CORNING INCORPORATED

Inventor： Yacob Mesfin Argaw ,  Nikolaos Pantelis Kladias ,  Robert Clark Moore ,  Bruce Warren Reding ,  Chunfeng Zhou

IPC: C03B37/027

Abstract: A method of processing an optical fiber includes drawing the optical fiber from a heated glass source, reheating the optical fiber, and cooling the optical fiber under vacuum at a cooling rate less than the cooling rate of the optical fiber in air at 25° C. and 1 atm. Cooling the optical fiber under vacuum is conducted after reheating the optical fiber. Cooling the optical fiber under vacuum reduces the rate of heat transfer from the optical fiber, which may enable further relaxation of the glass and reduction in the fictive temperature of the optical fiber. A system for processing an optical fiber includes a furnace containing a fiber preform, a first positioner, a reheating device, and a treatment device downstream of the reheating device, the treatment device operable to cool the optical fiber under vacuum to reduce the rate of heat transfer from the optical fiber.