公开(公告)号：WO2019204220A1

公开(公告)日：2019-10-24

申请号：PCT/US2019/027514

申请日：2019-04-15

申请人： CORNING INCORPORATED

发明人： BOOKBINDER, Dana Craig ,  STAINER, Darren Andrew ,  TANDON, Pushkar ,  TANDON, Ruchi ,  WAKEFIELD, Bryan William

IPC分类号： G02B6/44 ,  C03C25/18

摘要： An optical fiber coating die assembly is provided. The optical fiber coating die assembly includes a housing defining a guide chamber having an inlet for receiving optical fiber and an outlet, a guide die located at the outlet of the guide chamber, and a sizing die. The optical fiber coating die assembly also includes a coating applicator disposed between the guide die and the sizing die, and a tube operatively coupled to the inlet of the guide chamber and axially aligned with the chamber to receive the optical fiber fed into the guide chamber and provide a barrier to air flow.

公开(公告)号：WO2021126533A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/062964

申请日：2020-12-03

申请人： CORNING INCORPORATED

发明人： DUNWOODY, Steven Akin ,  KLADIAS, Nikolaos Pantelis ,  MOORE, Robert Clark ,  PACE, Jason Roy ,  THOMAS, Christopher Scott ,  WAKEFIELD, Bryan William ,  ZHOU, Chunfeng

IPC分类号： C03B37/027 ,  C03B37/029 ,  C03B2205/42 ,  C03B2205/50 ,  C03B2205/55 ,  C03B2205/57 ,  C03B2205/61 ,  C03B2205/83 ,  C03B37/02718

摘要： A system for processing optical fiber includes a draw furnace, a fiber conveyance pathway extending between an upstream end positioned at the draw furnace and a downstream end positioned opposite the upstream end, where optical fiber is conveyed along the fiber conveyance pathway from the upstream end to the downstream end in a fiber conveyance direction, a muffle in communication with the draw furnace and positioned downstream of the draw furnace, a second cooling device annularly surrounding the fiber conveyance pathway downstream from the draw furnace, the second cooling device including one or more second cooling device heating elements and a first cooling device positioned between the draw furnace and the second cooling device, wherein the first cooling device directs a fluid to contact the optical fiber.

公开(公告)号：WO2019212796A1

公开(公告)日：2019-11-07

申请号：PCT/US2019/028661

申请日：2019-04-23

申请人： CORNING INCORPORATED

发明人： BENNETT, Kevin Wallace ,  BICKHAM, Scott Robertson ,  TANDON, Pushkar ,  TANDON, Ruchi ,  WAKEFIELD, Bryan William

IPC分类号： G02B6/02 ,  G02B6/036

摘要： An optical fiber comprising: a core having an outer radius r 1 ; a cladding having an outer radius r 4 5 and a thickness t p >8 microns, the primary coating having in situ modulus E p of 0.35 MPa or less and a spring constant χ p p =2E p r 4 /t p ; and a secondary coating surrounding said primary coating, the secondary coating having an outer radius r 6 , a thickness t s =r 6 -r 5 , in situ modulus E s of 1200 MPa or greater, wherein > 10 microns and r 6 ≤ 85 microns. The fiber has a mode field diameter MFD greater than 8.2 microns at 1310 nm; a cutoff wavelength of less than 1310 nm; and a bend loss at a wavelength of 1550 nm, when wrapped around a mandrel having a diameter of 10 mm, of less than 1.0 dB/turn.