A new approach is introduced to enhance supercontinuum （SC） spectrum in a dispersion-flattened/decreasing fibre with a convex dispersion profile. A flat SC spectrum nearly extending from 1200hm to 2100hm can be gene...A new approach is introduced to enhance supercontinuum （SC） spectrum in a dispersion-flattened/decreasing fibre with a convex dispersion profile. A flat SC spectrum nearly extending from 1200hm to 2100hm can be generated based on this scheme. It is found that group-velocity dispersions （GVD） and self-phase modulation （SPM） effects are the primary factors for pump Raman scattering （SRS） effect plays an essential self-steepening effect can be ignored. pulse compression and SC spectrum generation, stimulated role on the final SC-spectrum bandwidth and flatness, but展开更多
The influence of the third-order dispersion (TOD) on the polarization mode dispersion (PMD) is investigated. It is found that the TOD effect destroys orthogonal polarization modes in optical birefringent fibres. A new...The influence of the third-order dispersion (TOD) on the polarization mode dispersion (PMD) is investigated. It is found that the TOD effect destroys orthogonal polarization modes in optical birefringent fibres. A new method is proposed to compensate for the PMD by means of cascading the fibres with the positive and negative TOD. This has proven to be practicable in long transmissions.展开更多
基金Supported by the Natural Science Foundation of Education Department of Guangdong Province under Grant No 0159, and the Natural Science Foundation of Guangdong Polytechnic Normal University under Grant No 109212.
文摘A new approach is introduced to enhance supercontinuum （SC） spectrum in a dispersion-flattened/decreasing fibre with a convex dispersion profile. A flat SC spectrum nearly extending from 1200hm to 2100hm can be generated based on this scheme. It is found that group-velocity dispersions （GVD） and self-phase modulation （SPM） effects are the primary factors for pump Raman scattering （SRS） effect plays an essential self-steepening effect can be ignored. pulse compression and SC spectrum generation, stimulated role on the final SC-spectrum bandwidth and flatness, but
基金Supported by the Natural Science Foundation of Guangdong Province under Grant Nos.980030 and 200019。
文摘The influence of the third-order dispersion (TOD) on the polarization mode dispersion (PMD) is investigated. It is found that the TOD effect destroys orthogonal polarization modes in optical birefringent fibres. A new method is proposed to compensate for the PMD by means of cascading the fibres with the positive and negative TOD. This has proven to be practicable in long transmissions.
