公开(公告)号：US11194107B2

公开(公告)日：2021-12-07

申请号：US16993810

申请日：2020-08-14

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Scott Robertson Bickham ,  Ximao Feng ,  Wen-Lung Kuang ,  Pushkar Tandon ,  Ruchi Tandon ,  Shudong Xiao ,  Bryan William Wakefield ,  Andy Fenglei Zhou

IPC: G02B6/02 ,  G02B6/028 ,  G02B6/036 ,  G02B6/38 ,  G02B6/40 ,  G02B6/42 ,  G02B6/43 ,  G02B6/44 ,  H04B10/80 ,  G02B6/36

Abstract: The high-density FAU comprises a support substrate having a grooved front-end section that supports glass end sections of the small diameter low-attenuation optical fibers. A cover is disposed on the front-end section and secured thereto to hold the glass end sections in place. The substrate and the cover can be made of the same glass or glasses having about the same CTE. The glass end sections have a diameter d4 so that the pitch P2 of the fibers at the front end of the FAU can be equal to or greater than d4, wherein d4=2r4, with r4 being the radius of the glass end section as defined by the optical fiber cladding. The glass end section has a radius r4 less than 45 microns, allowing for a high-density FAU and a high-density optical interconnection device.

公开(公告)号：US11054573B2

公开(公告)日：2021-07-06

申请号：US16781235

申请日：2020-02-04

Applicant: CORNING INCORPORATED

Inventor： Scott Robertson Bickham ,  Pushkar Tandon ,  Ruchi Tandon

IPC: G02B6/028 ,  C03C25/1065 ,  C03C25/12 ,  G02B6/02

Abstract: The present description provides multimode optical fibers with reduced cladding thickness. The optical fibers include a reduced-diameter glass fiber and/or reduced-thickness coatings. The overall diameter of the optical fibers is less than 210 μm and examples with diameters less than 160 μm are presented. Puncture resistant secondary coatings enable thinning of the secondary coating without compromising protection of the glass fiber. The optical fibers are suitable for data center applications and features high modal bandwidth, low attenuation, low microbending sensitivity, and puncture resistance in a compact form factor.

公开(公告)号：US20210132289A1

公开(公告)日：2021-05-06

申请号：US17064108

申请日：2020-10-06

Applicant: CORNING INCORPORATED

Inventor： Ching-Kee Chien ,  Pushkar Tandon ,  Ruchi Tandon

IPC: G02B6/02 ,  C03C25/1065

Abstract: An optical fiber includes an outer diameter less than 220 μm, a glass fiber that includes a glass core and a glass cladding, a primary coating, and a secondary coating. The glass cladding surrounds and is in direct contact with the glass core. The primary coating surrounds and is in direct contact with the glass fiber. The primary coating can have a Young's modulus less than 0.5 MPa and a thickness less than 30.0 μm. The secondary coating surrounds and is in direct contact with the primary coating. The secondary coating can have a thickness less than 27.5 μm. A pullout force of the optical fiber can be less than a predetermined threshold when in an as-drawn state. The pullout force may increase by less than a factor of 2.0 upon aging the primary and secondary coatings on the glass fiber for at least 60 days.

公开(公告)号：US20210094873A1

公开(公告)日：2021-04-01

申请号：US17030605

申请日：2020-09-24

Applicant: CORNING INCORPORATED

Inventor： Dana Craig Bookbinder ,  Stephan Lvovich Logunov ,  Darren Andrew Stainer ,  Pushkar Tandon ,  Ruchi Tandon

IPC: C03C25/104 ,  C03C25/12 ,  G02B6/02 ,  C03C25/6226

Abstract: An optical fiber curing component includes a first tube comprising a first body defining a first interior surface and a first exterior surface, the first tube defining a first aperture and a second aperture on opposite ends of a first cavity, wherein the first tube defines a central axis extending through the first cavity; light sources coupled to the first body of the first tube and configured to emit light toward the central axis of the first tube, wherein each of the light sources intersect a common plane defined perpendicular to the central axis of the first tube; a silica glass article, having an anti-reflective coating, disposed between each of the plurality of light sources and the central axis of the first tube; and a reflective coating positioned on the interior surface of the first body and configured to reflect the light toward the central axis of the first tube.

公开(公告)号：US20200225404A1

公开(公告)日：2020-07-16

申请号：US16716912

申请日：2019-12-17

Applicant: CORNING INCORPORATED

Inventor： Scott Robertson Bickham ,  Ming-Jun Li ,  Pushkar Tandon ,  Ruchi Tandon

IPC: G02B6/028 ,  G02B6/02 ,  G02B6/036 ,  C03C25/1065 ,  C03C25/50 ,  C03C25/285 ,  C03C25/326 ,  C03C13/04 ,  C09D175/16

Abstract: The present disclosure provides optical fibers with an impact-resistant coating system. The fibers feature low attenuation. The coating system includes a primary coating and a secondary coating. The primary coating and secondary coating have reduced thickness to provide low-diameter fibers without sacrificing protection. The primary coating has high tear strength and is resistant to damage caused by mechanical force. The secondary coating has high puncture resistance. The outer diameter of the optical fiber is less than or equal to 190 μm.

公开(公告)号：US20190331850A1

公开(公告)日：2019-10-31

申请号：US16391859

申请日：2019-04-23

Applicant: CORNING INCORPORATED

Inventor： Kevin Wallace Bennett ,  Scott Robertson Bickham ,  Pushkar Tandon ,  Ruchi Tandon ,  Bryan William Wakefield

IPC: G02B6/036 ,  G02B6/02 ,  G02B6/028

Abstract: An optical fiber comprising: a core having an outer radius ri; a cladding having an outer radius r4 8 microns, the primary coating having in situ modulus EP of 0.35 MPa or less and a spring constant χP 10 microns and r6≤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.

公开(公告)号：US20190249034A1

公开(公告)日：2019-08-15

申请号：US16266235

申请日：2019-02-04

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Yangbin Chen ,  Pushkar Tandon ,  Ruchi Tandon ,  Bin Yang

IPC: C09D175/16 ,  C08G18/75 ,  C08G18/48 ,  C08G18/67 ,  C08G18/12 ,  C08G18/24 ,  C09D5/00 ,  G02B6/02 ,  C03C25/106 ,  C03C25/326 ,  C03B37/025

CPC classification number: C09D175/16 ,  C03B37/025 ,  C03B2205/42 ,  C03C25/106 ,  C03C25/1065 ,  C03C25/326 ,  C08F222/1006 ,  C08F290/067 ,  C08G18/12 ,  C08G18/246 ,  C08G18/4825 ,  C08G18/672 ,  C08G18/6755 ,  C08G18/758 ,  C08G18/8175 ,  C09D4/06 ,  C09D5/002 ,  G02B1/04 ,  G02B6/02395 ,  C08F2222/1086 ,  C08F2220/287 ,  C08F226/06 ,  C08G18/48

Abstract: The present disclosure provides coating compositions and cured products formed from the coating compositions. The cured products can be formed at high cure speeds from the coating compositions and feature low Young's modulus, high tear strength, and/or high tensile toughness. The cured products can be used as primary coatings for optical fibers. The primary coatings provide good microbending performance and are resistant to defect formation during fiber coating processing and handling operations. The coating compositions include an oligomer, an alkoxylated monofunctional acrylate monomer, and preferably, an N-vinyl amide compound.

公开(公告)号：US10126495B2

公开(公告)日：2018-11-13

申请号：US15630336

申请日：2017-06-22

Applicant: Corning Incorporated

Inventor： Scott Robertson Bickham ,  Ching-Kee Chien ,  Ruchi Tandon

IPC: G02B6/028 ,  G02B6/02 ,  G02B6/036

Abstract: A multi-purpose optical fiber with coating is provided. The optical fiber can function as a transmission fiber or as a coupling fiber for optical data links that features low coupling loss to silicon photonics lasers, VCSELs, single mode transmission fibers, multimode transmission fibers, and high speed receivers. The fiber includes a core, an optional inner cladding region, a depressed index cladding region, an outer cladding region, and a coating. The relative refractive index profile of the coupling fiber includes a small-radius core region with α profile and a depressed index cladding region that facilitates low bending loss and high bandwidth. The coating thickness and overall diameter of the fiber is small.

公开(公告)号：US10030164B2

公开(公告)日：2018-07-24

申请号：US15582966

申请日：2017-05-01

Applicant: Corning Incorporated

Inventor： John William Botelho ,  Ruchi Tandon

IPC: C08F2/50 ,  C08F2/46 ,  C08G61/04 ,  C09D133/14

Abstract: A treated monomer for optical fiber coatings, a coating composition containing the treated monomer, a coating formed from a coating composition containing a treated monomer, and a fiber coated with the coating formed from a coating composition containing a treated monomer. The monomer is an alkoxylated alkyl acrylate and is formed by acrylating a polyol precursor. The monomer may include residual unreacted polyol precursor. The monomer is treated with a derivatizing agent to convert residual unreacted polyol to a derivative form. The derivative form is less susceptible to degradation to the corresponding non-alkoxylated alcohol or other lower alkoxylated alcohol. The treated monomer includes the alkoxylated alkyl acrylate and the derivative form of the polyol.

公开(公告)号：US20180003890A1

公开(公告)日：2018-01-04

申请号：US15630336

申请日：2017-06-22

Applicant: Corning Incorporated

Inventor： Scott Robertson Bickham ,  Ching-Kee Chien ,  Ruchi Tandon

IPC: G02B6/028 ,  G02B6/02 ,  G02B6/036

CPC classification number: G02B6/0288 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/0365

Abstract: A multi-purpose optical fiber with coating is provided. The optical fiber can function as a transmission fiber or as a coupling fiber for optical data links that features low coupling loss to silicon photonics lasers, VCSELs, single mode transmission fibers, multimode transmission fibers, and high speed receivers. The fiber includes a core, an optional inner cladding region, a depressed index cladding region, an outer cladding region, and a coating. The relative refractive index profile of the coupling fiber includes a small-radius core region with α profile and a depressed index cladding region that facilitates low bending loss and high bandwidth. The coating thickness and overall diameter of the fiber is small.