公开(公告)号：US20180128968A1

公开(公告)日：2018-05-10

申请号：US15866243

申请日：2018-01-09

Applicant: Yangtze Optical Fibre and Cable Joint Stock Limited Company

Inventor： Lei ZHANG ,  Jihong ZHU ,  Shengya LONG ,  Jun WU ,  Ruichun WANG

IPC: G02B6/02 ,  G02B6/036

CPC classification number: G02B6/03683 ,  G02B6/02009 ,  G02B6/02019 ,  G02B6/02333 ,  G02B6/036 ,  G02B6/03661

Abstract: An optical fiber with ultra-low attenuation and large effective-area includes a core layer and cladding layers. The cladding layers have an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary outer cladding layer. The core layer has a radius of 4.8-6.5 μm, and a relative refractive index difference of −0.06% to 0.10%. The inner cladding layer has a radius of 9-15 μm, and a relative refractive index difference of about −0.40% to −0.15%. The trench cladding layer has a radius of about 12-17 μm, and a relative refractive index difference of about −0.8% to −0.3%. The auxiliary outer cladding layer has a radius of about 37-50 μm, and a relative refractive index difference of about −0.6% to −0.25%. The outer cladding layer is a pure silicon-dioxide glass layer.

公开(公告)号：US20180052280A1

公开(公告)日：2018-02-22

申请号：US15725014

申请日：2017-10-04

Applicant: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY

Inventor： Lei ZHANG ,  Shengya LONG ,  Jihong ZHU ,  Jun WU ,  Ruichun WANG

IPC: G02B6/036 ,  C03C13/04

CPC classification number: G02B6/03683 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2201/32 ,  C03C2201/42 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2213/00 ,  G02B6/02009

Abstract: A doping optimized single-mode optical fiber with ultra low attenuation includes a core layer and cladding layers. The cladding layers has an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary outer cladding layer. The content of fluorine in the core layer is ≦0.5 wt %, ΔGe≦0.12%, Δn1≦0.12%. The content of fluorine in the inner cladding layer is 0.5-1.5 wt %, Δn2≦−0.14%. The content of fluorine in the trench cladding layer is 1-3 wt %, Δn3≦−0.25%. The content of fluorine in the auxiliary outer cladding layer is 0.5-2 wt %, Δn4≦−0.14%. The outer cladding layer is a pure silicon dioxide glass layer and/or a metal-doped silicon dioxide glass layer.

公开(公告)号：US20170176674A1

公开(公告)日：2017-06-22

申请号：US15448292

申请日：2017-03-02

Applicant: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY

Inventor： Shengya LONG ,  Lei ZHANG ,  Jihong ZHU ,  Jun WU ,  Ruichun WANG

IPC: G02B6/036 ,  G02B6/02

CPC classification number: G02B6/03683 ,  G02B6/02014 ,  G02B6/02019 ,  G02B6/02266

Abstract: A single-mode fiber with an ultra-low attenuation and a large effective area includes a core layer having a radius of 4.8 to 6.5 and a relative refractive index difference Δn1 of −0.06% to 0.10%, and cladding layers. The cladding layers includes an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary cladding layer. The inner cladding layer has a radius of 9 to 15 μm and a relative refractive index difference of −0.40% to −0.15%. The trench cladding layer has a radius of 12 to 17 μm and a relative refractive index difference of −0.8% to −0.3%. The auxiliary outer cladding layer has a radius of 37 to 50 μm and a relative refractive index difference of −0.6% to −0.25%. The outer cladding layer is a pure-silicon-dioxide glass layer.

公开(公告)号：US20180039019A1

公开(公告)日：2018-02-08

申请号：US15786048

申请日：2017-10-17

Applicant: Yangtze Optical Fibre and Cable Joint Stock Limited Company

Inventor： Lei ZHANG ,  Shengya LONG ,  Jihong ZHU ,  Jun WU ,  Hongyan ZHOU ,  Rui ZHANG ,  Ruichun WANG

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

CPC classification number: G02B6/03633 ,  G02B6/02009 ,  G02B6/028 ,  G02B6/036

Abstract: A bending-insensitive single-mode fiber with ultralow attenuation includes a core layer and cladding layers. The cladding layers includes an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary cladding layer. The core layer has a radius of 3.0 to 3.9 μm and a relative refractive index of −0.04% to 0.12%. The inner cladding layer has a radius of 8 to 14 μm and a relative refractive index −0.35% to −0.10%. The trench cladding layer has a radius of 14 to 20 μm and a relative refractive index of −0.6% to −0.2%. The auxiliary outer cladding layer has a radius of 35 to 50 μm and a relative refractive index of −0.4% to −0.15%. The outer cladding layer is a pure silica glass layer.

公开(公告)号：US20180128967A1

公开(公告)日：2018-05-10

申请号：US15862099

申请日：2018-01-04

Applicant: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY

Inventor： Jihong ZHU ,  Lei ZHANG ,  Shengya LONG ,  Jun WU ,  Liang AI ,  Ruichun WANG

IPC: G02B6/02 ,  G02B1/04

CPC classification number: G02B6/02009 ,  G02B1/046 ,  G02B6/02028 ,  G02B6/02219 ,  G02B6/036 ,  G02B6/03683

Abstract: An optical fiber with ultra-low attenuation and bend insensitivity includes a core layer and cladding layers. The cladding layers have an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary outer cladding layer. The core layer has a radius of 3.0-3.9 μm, and a relative refractive index difference of −0.04% to 0.12%. The inner cladding layer has a radius of 8-14 μm, and a relative refractive index difference of about −0.35% to −0.10%. The trench cladding layer has a radius of about 14-20 μm, and a relative refractive index difference of about −0.6% to −0.2%. The auxiliary outer cladding layer has a radius of about 35-50 μm, and a relative refractive index difference of about −0.4% to −0.15%. The outer cladding layer is a pure silicon-dioxide glass layer.

公开(公告)号：US20180039020A1

公开(公告)日：2018-02-08

申请号：US15785923

申请日：2017-10-17

Applicant: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY

Inventor： Shengya LONG ,  Jihong ZHU ,  Lei ZHANG ,  Jun WU ,  Rui ZHANG ,  Ruichun WANG

IPC: G02B6/036 ,  C03C13/04 ,  G02B6/02

CPC classification number: G02B6/03683 ,  C03C13/046 ,  C03C2213/00 ,  G02B6/02009 ,  G02B6/02266 ,  G02B6/036

Abstract: A single-mode fiber with ultralow attenuation includes a core layer and cladding layers. The cladding layers includes an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary cladding layer. The core layer has a radius of 3.9-4.8 μm and a relative refractive index difference of −0.08% to 0.10%. The inner cladding layer has a radius of 9-14 μm and a relative refractive index difference of −0.40% to −0.15%. The trench cladding layer has a radius of 13-25 μm and a refractive index difference of −0.7% to −0.3%. The auxiliary outer cladding layer has a radius of 30-50 μm and a relative refractive index difference of −0.4% to −0.15%. The outer cladding layer is a pure silicon dioxide glass layer.