公开(公告)号：US20180095219A1

公开(公告)日：2018-04-05

申请号：US15714122

申请日：2017-09-25

Applicant: Corning Incorporated

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

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

CPC classification number: G02B6/0286 ,  C03B37/014 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2201/42 ,  C03B2203/22 ,  C03B2203/24 ,  C03C3/06 ,  C03C2201/02 ,  C03C2201/08 ,  G02B6/02004 ,  G02B6/02009 ,  G02B6/02319 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/03611 ,  G02B6/03616 ,  G02B6/03627 ,  G02B6/0365 ,  G02B6/03694

Abstract: According to embodiments, an optical fiber may include a core portion comprising an outer radius rC and a maximum relative refractive index ΔCmax. A cladding may surround the core portion and include a low-index trench and an outer cladding. The low index trench may surround the core portion and includes an outer radius rT and relative refractive index ΔT. The outer cladding may surround and be in direct contact with the low-index trench. The outer cladding may be formed from silica-based glass comprising greater than 1.0 wt. % bromine and has a relative refractive index ΔOC, wherein Δcmas>ΔOC>ΔT. The optical fiber may have a cable cutoff of less than or equal to 1530 nm. An attenuation of the optical fiber may be less than or equal to 0.185 dB/km at a wavelength of 1550 nm.

公开(公告)号：US20170144917A1

公开(公告)日：2017-05-25

申请号：US15297534

申请日：2016-10-19

Applicant: Corning Incorporated

Inventor： Sezhian Annamalai ,  Steven Bruce Dawes ,  Carlos Alberto Duran ,  Kenneth Edward Hrdina ,  William Rogers Rosch ,  Bryan Ray Wheaton

IPC: C03C3/089 ,  C03C4/00 ,  C03B25/02

CPC classification number: C03C3/089 ,  C03B19/14 ,  C03B25/02 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/10 ,  C03B2201/42 ,  C03C3/06 ,  C03C4/00 ,  C03C23/007 ,  C03C2201/10 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/42 ,  C03C2203/54

Abstract: A doped silica-titania (“DST”) glass article that includes a glass article having a glass composition comprising a silica-titania base glass containing titania at 7 to 14 wt. % and a balance of silica, and a dopant selected from the group consisting of (a) F at 0.7 to 1.5 wt. %, (b) B2O3 at 1.5 to 5 wt. %, (c) OH at 1000 to 3000 ppm, and (d) B2O3 at 0.5 to 2.5 wt. % and OH at 100 to 1400 ppm. The glass article has an expansivity slope of less than about 1.3 ppb/K2 at 20° C. For DST glass articles doped with F or B2O3, the OH level can be held to less than 10 ppm, or less than 100 ppm, respectively. In many aspects, the DST glass articles are substantially free of titania in crystalline form.

公开(公告)号：US20160115070A1

公开(公告)日：2016-04-28

申请号：US14878298

申请日：2015-10-08

Applicant: CORNING INCORPORATED

Inventor： Steven Bruce Dawes ,  Lisa Ann Hogue

IPC: C03B37/012 ,  C03B19/06

CPC classification number: C03B37/01282 ,  C03B19/066

Abstract: A method for forming an optical quality glass is provided. The method includes contacting silica soot particles with a hygroscopic additive, forming a silica soot compact, and removing the hygroscopic additive from the silica soot compact. A method of forming a cladding portion of an optical fiber preform is also provided.

Abstract translation: 提供一种形成光学品质玻璃的方法。 该方法包括使二氧化硅烟灰颗粒与吸湿添加剂接触，形成二氧化硅烟灰压块，以及从二氧化硅烟灰压实体中除去吸湿添加剂。 还提供了形成光纤预制件的包层部分的方法。