发明名称 |
Optical fiber with large effective area and low bending loss |
摘要 |
An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F. |
申请公布号 |
US9594210(B2) |
申请公布日期 |
2017.03.14 |
申请号 |
US201615188202 |
申请日期 |
2016.06.21 |
申请人 |
Corning Incorporated |
发明人 |
Bookbinder Dana Craig;Li Ming-Jun;Matthews, III Hazel Benton;Mishra Snigdharaj Kumar;Tandon Pushkar |
分类号 |
G02B6/036;G02B6/02;C03C13/04 |
主分类号 |
G02B6/036 |
代理机构 |
|
代理人 |
Bray Kevin L. |
主权项 |
1. An optical fiber comprising:
a core region comprising Cl-doped silica glass having a chlorine concentration greater than 1.5 wt %, said core region having an outer radius r1 in the range from 6.0 microns to 10.0 microns and a relative refractive index Δ1; an inner cladding region surrounding said core region, said inner cladding region having an outer radius r2 in the range from 22 microns to 38 microns and a relative refractive index Δ2; and an outer cladding region surrounding said inner cladding region, said outer cladding region having a relative refractive index Δ3, said relative refractive index Δ3 exceeding said relative refractive index Δ2 by at least 0.06%; wherein said optical fiber has a cable cutoff of less than 1550 nm, an effective area at 1550 nm of at least 100 micron2, and a bending loss at 1550 nm, determined from a mandrel wrap test using a mandrel with a diameter of 20 mm, of less than 3.5 dB/turn. |
地址 |
Corning NY US |