Bending non-sensitive fibre optical with moderate modulus filed diameter

A bending insensitive, waveguide structure technology, applied in the direction of optical waveguide light guide, multi-layer core/cladding optical fiber, cladding optical fiber, etc., can solve the problem of large macrobending loss, excessive absolute value of dispersion, and access network construction work Inconvenience and other problems, to achieve the effect of excellent bending characteristics
CN100371747CActive Publication Date: 2008-02-27JIANGSU HENGTONG OPTICAL FIBER TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU HENGTONG OPTICAL FIBER TECH
Publication Date
2008-02-27

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Abstract

A monomode optical fiber with suitable mode-field diameters, whcih is not sensitive to bending, is available for double windows of 1310nm and 1550nm wavelengths. It consists of three sub-layered cores and three sub-claddings with different refraction index profiles. The third layer of the sub-claddings is of pure silicon dioxide glass. It is suitable for distribution in rooms.
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Description

technical field

[0001] The invention relates to an optical fiber for access network and FTTH, especially a bending-insensitive single-mode optical fiber with a waveguide structure which has excellent bending performance and is suitable for being stored in a junction box or a closed container. Background technique

[0002] At present, as FTTH begins to penetrate into residential users, the amount of optical fiber access network construction has increased significantly. Access network construction requires easier networking work and shorter time. This requires that the single-mode optical fiber suitable for the access network has the characteristics of small additional loss, high strength and suitable mode field diameter under a small bending radius, which is convenient for wiring construction and crimping, and can control the connection loss with the laid optical fiber at the same time.

[0003] Due to the large mode field diameter (MFD) of conventional G.652 single-mode fib...

Claims

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