Gradual refractive index bending resistant multimode optical fiber
A graded-index, multi-mode optical fiber technology, applied in the field of optical communication, can solve the problems of reducing optical fiber bandwidth and distortion, and achieve the effects of reducing refractive index distortion, reducing additional attenuation, and improving bending resistance
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[0039] The following detailed examples are given to further illustrate the present invention, so that the application scope of the present invention is more obvious. In the table, R1 is the radius of the core layer, R2 is the radius of the inner cladding, R3 is the radius of the middle cladding, and R4 is the radius of the outer cladding.
[0040]
[0041] Through comparative tests, the bending loss of the bending-resistant multimode optical fiber designed and manufactured by adopting the solution of the present invention is significantly lower than that of the same type of conventional multimode optical fiber under various test conditions.
[0042] At the same time, the first inner cladding layer co-doped with F and Ge designed in the present invention can significantly withstand the additional stress from the preform rod to the fiber drawing process during the optical fiber manufacturing process, thereby reducing the parabolic distortion of the obtained optical fiber cor...
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