波导色散对多模波导传输性能的影响

By means of modal multiplexing, each mode of an optical multimode waveguide is selectively excited and detected. The effect of waveguide dispersion on transmission performance of a rectangular multimode waveguide was studied through analyzing the waveguide dispersion and its dispersion factor. An expression of bit rate in multimode waveguide only under the influence of waveguide dispersion was given. At the meantime, the relationship between waveguide structure and bit rate was analyzed.