-
41.发明申请公开(公告)号：US20140328566A1
公开(公告)日：2014-11-06
申请号：US14224155
申请日：2014-03-25
Applicant: Corning Incorporated
Inventor： Scott Robertson Bickham , Kevin Alton Lewis , Snigdharaj Kumar Mishra , Manuela Ocampo , Joan Diana Patterson
IPC: G02B6/02
CPC classification number: G02B6/02009 , C03C25/1065 , C03C25/285 , C03C25/326 , G02B6/02395 , G02B6/0281 , G02B6/03627 , G02B6/0365
Abstract: Optical fibers having a mode field diameter at 1310 nm of at least 8.8 μm, wire mesh covered drum microbending losses at 1550 nm less than 0.03 dB/km, and a 2 m cutoff wavelength less than 1320 nm. The fibers may include a central core region, an inner cladding region, an outer cladding region, a primary coating with an in situ modulus less than 0.20 MPa and glass transition temperature less than −35° C., and a secondary coating with an in situ modulus greater than 1500 MPa. The fibers may further include a depressed index cladding region. The relative refractive index of the central core region may be greater than the relative refractive index of the outer cladding region may be greater than the relative refractive index of the inner cladding region. The fibers may be produced at draw speeds of 30 m/s or greater.
Abstract translation: 具有至少8.8μm的1310nm的模场直径的光纤，在1550nm处的丝网覆盖滚筒微弯损耗小于0.03dB / km，以及小于1320nm的2μm截止波长。 纤维可以包括中心芯区域，内包层区域，外包层区域，原位模量小于0.20MPa的初级涂层和玻璃化转变温度低于-35℃，以及具有 原位模数大于1500MPa。 纤维还可以包括凹陷的折射率包层区域。 中心纤芯区域的相对折射率可以大于外包层区域的相对折射率可能大于内包层区域的相对折射率。 纤维可以以30m / s或更大的拉伸速度生产。
-
42.发明授权公开(公告)号：US12055753B2
公开(公告)日：2024-08-06
申请号：US18241178
申请日：2023-08-31
Applicant: CORNING INCORPORATED
Inventor： Scott Robertson Bickham , Ming-Jun Li , Snigdharaj Kumar Mishra , Pushkar Tandon , Ruchi Sarda Tandon
IPC: G02B6/02 , C09D4/00 , C09D133/14 , C09D175/04 , G02B6/028 , G02B6/036
CPC classification number: G02B6/02395 , C09D4/00 , C09D133/14 , C09D175/04 , G02B6/0281 , G02B6/03627 , G02B6/0365
Abstract: The optical fiber disclosed has a glass fiber including a core and a cladding. The core comprises silica glass doped with chlorine and having an outer radius r1 between 3.0 microns and 10.0 microns. The cladding has an outer radius r4 not less than 50.0 microns. A primary coating surrounding the cladding has a thickness (r5-r4) between 5.0 microns and 20.0 microns, and an in situ modulus less than 0.30 MPa. A secondary coating surrounding the primary coating has a thickness (r6-r5) between 8.0 microns and 30.0 microns, a Young's modulus greater than 1500 MPa, and a normalized puncture load greater than 3.6×10−3 g/micron2. The optical fiber has a 22-meter cable cutoff wavelength less than 1530 nm, an attenuation at 1550 nm of less than 0.17 dB/km, and a bending loss at 1550 nm of less than 3.0 dB/turn.
-
公开(公告)号：US12050339B2
公开(公告)日：2024-07-30
申请号：US18201368
申请日：2023-05-24
Applicant: CORNING INCORPORATED
Inventor： Scott Robertson Bickham , Dana Craig Bookbinder , Ming-Jun Li , Snigdharaj Kumar Mishra , Pushkar Tandon
IPC: G02B6/02
CPC classification number: G02B6/02042 , G02B6/02019
Abstract: A coupled-core multicore optical fiber has a plurality of cores that are doped with alkali metals or chlorine to achieve low attenuation and a large effective area. The cores may be embedded in a common cladding region that may be fluorine doped. The cores may also be doped with chlorine, either with the alkali metals described above or without the alkali metals.
-
公开(公告)号：US20230417984A1
公开(公告)日：2023-12-28
申请号：US18211675
申请日：2023-06-20
Applicant: CORNING INCORPORATED
Inventor： Snigdharaj Kumar Mishra , Pushkar Tandon
CPC classification number: G02B6/03627 , G02B6/02004 , G02B6/02104 , G02B6/02333
Abstract: An optical fiber includes a core region having a relative refractive index profile Δ1 with a maximum relative refractive index Δ1max in a range from 0.20% to 0.50%, and a surrounding cladding region that includes a triangular trench cladding region and an outer cladding region, and a relative refractive index Δ3 with a minimum relative refractive index Δ3min greater than −0.60% and less than 0.00%, and a trench volume greater than 30% μm2. The outer cladding region has a relative refractive index Δ4 in a range from 0.01% to 0.06% and a chlorine concentration greater than 1500 ppm. The optical fiber has a mode field diameter at 1310 nm of greater than 9.0 microns, a cable cutoff wavelength of less than 1260 nm, a zero dispersion wavelength between 1300 nm and 1324 nm, and low macrobend loss.
-
公开(公告)号：US20230314276A1
公开(公告)日：2023-10-05
申请号：US18128655
申请日：2023-03-30
Applicant: CORNING INCORPORATED
Inventor： Xin Chen , Kangmei Li , Ming-Jun Li , Snigdharaj Kumar Mishra , Simit Mayank Patel
Abstract: A method of categorizing single mode optical fibers, the method including determining one or more fiber properties of an optical fiber, the optical fiber being a single mode optical fiber at an operating wavelength of about 1310 nm. The method further including calculating a peak bandwidth wavelength of the optical fiber based on the one or more fiber properties, comparing the calculated peak bandwidth wavelength with a target peak bandwidth wavelength and based on the comparison, determining if the optical fiber meets a target modal bandwidth.
-
Patent Agency Ranking
公开(公告)号：US11506835B2
公开(公告)日：2022-11-22
申请号：US17082688
申请日：2020-10-28
Applicant: CORNING INCORPORATED
Abstract: The present disclosure provides optical fibers that exhibit low macrobend loss at 1550 nm at bend diameters greater than 40 mm. The relative refractive index profile of the fibers includes a trench cladding region having a trench volume configured to minimize macrobend loss at large bend diameters. The thickness and/or depth of the trench cladding region are controlled to reduce trench volume to a degree consistent with reducing macrobend loss at bend diameters greater than 40 mm. The optical fiber includes an outer cladding region that surrounds and is directly adjacent to the trench cladding region and an optional offset cladding region between the trench cladding region and the core region. In some embodiments, the core region is a segmented core region that includes inner and outer core regions. The low macrobend loss available from the optical fibers makes them particularly suitable for applications in submarine telecommunications systems.
-
公开(公告)号：US20210294027A1
公开(公告)日：2021-09-23
申请号：US17190833
申请日：2021-03-03
Applicant: CORNING INCORPORATED
Inventor： Kevin Wallace Bennett , Snigdharaj Kumar Mishra , Pushkar Tandon , Aramais Robert Zakharian
IPC: G02B6/02 , G02B6/44 , G02B6/028 , C03C25/106
Abstract: A multicore optical fiber is provided that includes a first core with silica glass doped with chlorine and/or an alkali metal, a first inner cladding surrounding the first core, and a first outer cladding surrounding the first inner cladding and having a first trench region having a volume of about 30%Δ-micron2 or greater. The multicore optical fiber also includes a second core with silica glass doped with chlorine and/or an alkali metal, a second inner cladding surrounding the second core, and a second outer cladding surrounding the second inner cladding and having a second trench region having a volume of about 30%Δ-micron2 or greater. Additionally, a common cladding surrounds the first core and the second core, and the first core and the second core each have an effective area at 1550 nm of about 100 micron2 or less.
-
48.发明申请公开(公告)号：US20210032153A1
公开(公告)日：2021-02-04
申请号：US16936991
申请日：2020-07-23
Applicant: CORNING INCORPORATED
Inventor： Xin Chen , Kangmei Li , Ming-Jun Li , Snigdharaj Kumar Mishra
IPC: C03B37/025 , G02B6/028 , G02B6/02 , G02B6/036
Abstract: Methods of forming a bandwidth-tuned optical fiber for short-length data transmission systems include establishing a relationship between a change Δτ in a modal delay τ, a change ΔT in a draw tension T and a change Δλ in a BM wavelength λ of light in a BM wavelength range from 840 nm and 1100 nm for a test optical fiber drawn from a preform and that supports BM operation at the BM wavelength. The methods also include drawing from either the preform or a closely related preform the bandwidth-tuned optical fiber by setting the draw tension based on the established relationships of the aforementioned parameters so that the bandwidth-tuned optical fiber has a target bandwidth greater than 2 GHz·km at a target wavelength within the BM wavelength range.
-
公开(公告)号：US20200150336A1
公开(公告)日：2020-05-14
申请号：US16741993
申请日：2020-01-14
Applicant: Corning Incorporated
Inventor： Dana Craig Bookbinder , Ming-Jun Li , Snigdharaj Kumar Mishra , Pushkar Tandon
Abstract: An optical fiber includes (i) a chlorine doped silica based core having a core alpha (Coreα)≥4, a radius r1, and a maximum refractive index delta Δ1max % and (ii) a cladding surrounding the core. The cladding surrounding the core includes a) a first inner cladding region adjacent to and in contact with the core and having a refractive index delta Δ2, a radius r2, and a minimum refractive index delta Δ2min such that Δ2min
-
公开(公告)号：US10444427B2
公开(公告)日：2019-10-15
申请号：US15660024
申请日：2017-07-26
Applicant: Corning Incorporated
Inventor： Dana Craig Bookbinder , Ming-Jun Li , Snigdharaj Kumar Mishra , Pushkar Tandon
Abstract: Single mode optical fibers with a chlorine doped core and a cladding having a fluorine doped trench region are disclosed. The optical fiber includes a chlorine doped silica core having a core alpha α≥10, a core radius r1 and maximum refractive index delta Δ1max % and a Cl concentration≥0.9 wt %. The optical fiber also has a cladding surrounding the core, the cladding having an inner and an outer cladding. The inner cladding has first and second cladding regions. The optical fiber has mode field diameter at 1310 nm of larger than 9 microns, a cable cutoff wavelength of ≤1260 nm, a zero dispersion wavelength λ0, where 1300 nm≤λ0≤1324 nm, and bend loss at 1550 nm for a 20 mm mandrel of less than 0.5 dB/turn.
-
-
-
-
-
-
-
-
-
Search Results
77
records
(took 0.031 seconds)
