Yangtze Optical Fibre and Cable Joint Stock Limited Company

Ming Cheng

Beibei Cao

Runhan Wang

Wufeng Xiao

Tiejun Wang

Changkun Yan

A low-dispersion single-mode fiber includes a core and claddings covering the core. The core layer has a radius in a range of 3-5 &#x3bc;m and a relative refractive index difference in a range of 0.15% to 0.45%. The claddings comprise a first depressed cladding, a raised cladding, a second depressed cladding, and an outer cladding arranged sequentially from inside to outside. The first depressed cladding has a unilateral width in a range of 2-7 &#x3bc;m and a relative refractive index difference in a range of &#x2212;0.4% to 0.03%. The raised cladding has a unilateral width in a range of 2-7 &#x3bc;m and a relative refractive index difference in a range of 0.05% to 0.20%. The second depressed cladding has a unilateral width in a range of 0-8 &#x3bc;m and a relative refractive index difference in a range of 0% to &#x2212;0.2%. The outer cladding is formed of pure silicon dioxide glass.

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Hubei, China

Ming Cheng