公开(公告)号：US20240319464A1

公开(公告)日：2024-09-26

申请号：US18574228

申请日：2022-12-26

Applicant: SWCC Corporation

Inventor： Yuki OTA ,  Takeshiro NAGAI ,  Kengo TANABE ,  Wataru NORO

IPC: G02B6/44

CPC classification number: G02B6/4404 ,  G02B6/4434 ,  G02B6/448

Abstract: Disclosed is an optical fiber ribbon (1) in which a plurality of single-core coated optical fibers (11-22) are intermittently connected or separated in a length direction and a width direction while being connected every two cores. The optical fiber ribbon (1) satisfies conditional expressions [1], [2] when the length in the longitudinal direction of a connection portion (3) is denoted by A, the length in the longitudinal direction of a non-connection portion (5) in which separation portions (4) adjacent to each other overlap when viewing the separation portions (4) in the width direction is denoted by C, and the periodic interval in the longitudinal direction between the connection portions (3) is denoted by P.


P≤150 mm [2]: A:C=25-45 mm: 10-30 mm  [1]:

公开(公告)号：US20240255719A1

公开(公告)日：2024-08-01

申请号：US18635500

申请日：2024-04-15

Applicant: CORNING RESEARCH & DEVELOPMENT CORPORATION

Inventor： Jie Feng

IPC: G02B6/44

CPC classification number: G02B6/4436 ,  G02B6/4434 ,  G02B6/4486

Abstract: Disclosed herein are embodiments of an optical fiber cable. The optical fiber cable includes a cable jacket having a jacket inner surface and a jacket outer surface in which the jacket inner surface defines a central bore extending along a longitudinal axis of the optical fiber cable. The optical fiber cable also includes a buffer tube having an inner buffer tube surface and an outer buffer tube surface, and the buffer tube is disposed within the central bore of the cable jacket. At least one optical fiber is disposed within the buffer tube. A flame retardant coating having at least one layer is applied to one or both of the jacket outer surface of the cable jacket or the outer buffer tube surface of the buffer tube.

公开(公告)号：US20240255718A1

公开(公告)日：2024-08-01

申请号：US18630250

申请日：2024-04-09

Applicant: CORNING RESEARCH & DEVELOPMENT CORPORATION

Inventor： Scott Robertson Bickham ,  Julie Ann Chalk ,  David Wesley Chiasson ,  Stephan Lvovich Logunov

IPC: G02B6/44 ,  G02B6/02 ,  G02B6/024

CPC classification number: G02B6/4434 ,  G02B6/02042 ,  G02B6/024 ,  G02B6/448

Abstract: Provided are embodiments of an optical fiber ribbon. The optical fiber ribbon includes a plurality of optical fibers arranged adjacently. The plurality of optical fibers are joined intermittently or continuously along their length. Each optical fiber of the plurality of optical fibers has at least one core having a first refractive index, a cladding region having a second refractive index different from the first refractive index, and a third region disposed within the cladding region. The third region has a third refractive index different from the first refractive index and from the second refractive index. The third region of each optical fiber includes a centroid having a true position according to ASME Y14.5-2009 relative to an adjacent optical fiber that is within a diametrical tolerance of 50 μm. Embodiments of a method and a system for preparing such and optical fiber ribbon are also provided.

公开(公告)号：US20240094492A1

公开(公告)日：2024-03-21

申请号：US18515679

申请日：2023-11-21

Applicant: CORNING RESEARCH & DEVELOPMENT CORPORATION

Inventor： Leigh Rooker Josey ,  Snigdharaj Kumar Mishra ,  Sebastian Olszewski ,  David Alan Seddon ,  Pushkar Tandon

IPC: G02B6/44 ,  G02B6/02

CPC classification number: G02B6/4434 ,  G02B6/02395

Abstract: Provided are embodiments of an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface. The inner surface defines a central cable bore, and the outer surface defines an outermost surface of the optical fiber cable and a cable cross-sectional area (AC). At least one buffer tube is disposed within the central cable bore. Each buffer tube has an interior surface defining a buffer tube cross-sectional area (ATube, ID). A plurality of optical fibers (N) are disposed within the at least one buffer tube. Each optical fiber has a fiber diameter of 160 microns to 200 microns. The plurality of optical fibers have a total fiber area (AF). The buffer tube has a free space (1−AF/ATube, ID) of at least 37%, and the optical fiber cable has a fiber density (N/AC) of at least 3.25 fibers/mm2.

公开(公告)号：US11886027B2

公开(公告)日：2024-01-30

申请号：US16880188

申请日：2020-05-21

Applicant: Corning Optical Communications LLC

Inventor： Michael Alexander Heinz

IPC: G02B6/44

CPC classification number: G02B6/4436 ,  G02B6/448 ,  G02B6/4434 ,  G02B6/4486

Abstract: An optical fiber cable includes a central strength member, a bedding compound surrounding the central strength member, a plurality of buffer tubes stranded around the central strength member and the bedding compound such that the bedding compound forms to the buffer tubes and occupies substantially the entirety of an inner core area between the buffer tubes and the central strength member. At least one of the buffer tubes contains a plurality of optical fibers and a jacket surrounds the plurality of buffer tubes. The cable may further include a second bedding compound that fills interstices in an outer core area between the buffer tubes and the jacket.

公开(公告)号：US11880078B2

公开(公告)日：2024-01-23

申请号：US17878166

申请日：2022-08-01

Applicant: Corning Optical Communications LLC

Inventor： Michael Emmerich ,  Warren Welborn McAlpine ,  Guenter Wuensch

IPC: G02B6/44

CPC classification number: G02B6/4429 ,  G02B6/441 ,  G02B6/443 ,  G02B6/4413 ,  G02B6/4432 ,  G02B6/4433 ,  G02B6/4434 ,  G02B6/4431

Abstract: An optical communication cable is provided having a cable body with an inner surface defining a passage within the cable body and a plurality of core elements within the passage. A film surrounds the plurality of core elements, wherein the film directs a radial force inward onto the plurality of core elements to restrain and hold the plurality of core elements in place.

公开(公告)号：US11796749B2

公开(公告)日：2023-10-24

申请号：US17970747

申请日：2022-10-21

Applicant: CORNING RESEARCH & DEVELOPMENT CORPORATION

Inventor： Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

IPC: G02B6/44

CPC classification number: G02B6/4404 ,  G02B6/448 ,  G02B6/4432 ,  G02B6/4478 ,  G02B6/4434

Abstract: A rollable optical fiber ribbon utilizing low attenuation, bend insensitive fibers and cables incorporating such rollable ribbons are provided. The optical fibers are supported by a ribbon body, and the ribbon body is formed from a flexible material such that the optical fibers are reversibly movable from an unrolled position to a rolled position. The optical fibers have a large mode filed diameter, such as ≥9 microns at 1310 nm facilitating low attenuation splicing/connectorization. The optical fibers are also highly bend insensitive, such as having a macrobend loss of ≤0.5 dB/turn at 1550 nm for a mandrel diameter of 15 mm.

公开(公告)号：US11782229B2

公开(公告)日：2023-10-10

申请号：US17739355

申请日：2022-05-09

Applicant: CORNING RESEARCH & DEVELOPMENT CORPORATION

Inventor： Bradley Jerome Blazer ,  Julian Latelle Greenwood, III ,  Warren Welborn McAlpine ,  David Alan Seddon

IPC: G02B6/44

CPC classification number: G02B6/443 ,  G02B6/448 ,  G02B6/4434 ,  G02B6/4486

Abstract: An optical fiber cable including a central strength member, a first plurality of tight-buffered ribbon stacks, a binder film, and a cable sheath. The central strength member extends along a longitudinal axis of the optical fiber cable. The tight-buffered ribbon stacks are SZ-stranded around the central strength member. An interstitial space is provided between adjacent tight-buffered ribbon stacks. A binder film continuously and contiguously surrounds the first plurality of tight-buffered ribbon stacks along the longitudinal axis. The binder film includes first portions and at least one second portion. Each of the at least one second portion of the binder film extends into one of the interstitial spaces of the first plurality of tight-buffered ribbon stacks. The cable sheath continuously and contiguously surrounds the binder film along the longitudinal axis, and the cable sheath is coupled to the first portions of the binder film.

公开(公告)号：US20190064462A1

公开(公告)日：2019-02-28

申请号：US16075803

申请日：2017-02-08

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Keisuke OKADA ,  Fumiaki SATO ,  Yoshiaki NAGAO ,  Nobuyuki SUZUKI

IPC: G02B6/44

CPC classification number: G02B6/4434 ,  G02B6/4403 ,  G02B6/4408 ,  G02B6/4413 ,  G02B6/443 ,  G02B6/448

Abstract: An optical fiber cable includes optical fiber ribbons of no less than 12, a slot rod including slot grooves in which the optical fiber ribbons are housed, a tension member, and a cable sheath. The optical fiber ribbons include, at a part of or through all of the optical fiber core wires, in a state where the optical fiber core wires are arranged in parallel, a connecting part where adjacent optical fiber core wires are connected and a non-connecting part where adjacent optical fiber core wires are not connected, which are provided intermittently in a longitudinal direction. A relationship between the number “x” of the optical fiber core wires housed in the optical fiber cable and flexural rigidity “y” (N·mm2) of the optical fiber cable satisfies following Expression 1. y≤3e0.0006x   (Expression 1)

公开(公告)号：US20180203198A1

公开(公告)日：2018-07-19

申请号：US15923125

申请日：2018-03-16

Applicant: CORNING OPTICAL COMMUNICATIONS LLC

Inventor： Warren Welborn McAlpine ,  Eric John Mozdy ,  Joel Laine Parker

IPC: G02B6/44

CPC classification number: G02B6/4413 ,  G02B6/443 ,  G02B6/4434 ,  G02B6/4494 ,  G02B6/4495

Abstract: A fiber optic cable includes core elements wound in a pattern of stranding, the core elements comprising tubes surrounding optical fibers. The fiber optic cable further includes an binder film surrounding the stranded core elements. The binder film is continuous peripherally around the core elements, forming a continuous closed loop when viewed in cross-section, and continuous lengthwise along a length of the cable that is at least a meter. Further, the binder film is in radial tension and opposes outwardly transverse deflection of the core elements.