Dispersion compensating transmission optical fiber matched with orthochromatic dispersion and ortho chromatic dispersion slope unimodel optical fiber and use

Abstract

The waveguide structure of single-mode optical fibre comprises layered fibre core and layered clad. The fibre core is set with two core layers in different refractive indexed and layered clad consists of five layered clads. The codeposition of fluorine and germanium is applied by utilizing PCVD process to replace independent deposition of fluorine or germanium in deposition process for fibre core and clad so optical, mechanical and environmental performance of optical fibre is very much improved. The single-mode optical fibre produced in the present invention can be used in transmission of DWDM system.

Description

technical field

[0001] The present invention relates to a class of negative dispersion single-mode optical waveguide fiber designed for large-capacity and high-speed transmission systems and the use of the fiber. Specifically, the involved single-mode fiber has certain negative dispersion and negative dispersion slope at 1450-1675nm , with low attenuation, low polarization mode dispersion (PMD), large effective area, low splice loss, excellent bending resistance and environmental characteristics. Background technique

[0002] Since the mid-1990s, with the development of erbium-doped fiber amplifiers and wavelength division multiplexing technology, optical fiber communication has entered an unprecedented high-speed development stage. With the development of wavelength division multiplexing, it is found that nonlinear effects between wavelengths, such as four-wave mixing, self-phase modulation, cross-phase modulation, etc., limit the expansion of system...

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