Supercontinuum generation in dispersion-flattened fibers is studied theoretically.It is found that the flat spectral width of the supercontinuum generation in normal dispersion-flattened fiber can be increased from 66...Supercontinuum generation in dispersion-flattened fibers is studied theoretically.It is found that the flat spectral width of the supercontinuum generation in normal dispersion-flattened fiber can be increased from 66 nm to over 100 nm when the absolute value of the initial frequency chirps is increased from zero to 10.It is further found that initial frequency chirps are adverse to flat and wideband supercontinuum generation in anomalous dispersion-flattened fiber,and when the absolute value of the frequency chirps is increased to a certain degree,supercontinuum spectrum even can not be achieved.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National Natural Science Foundation of China(60677051)Guangdong Natural Science Foundation of China(8151063301000004)
文摘Supercontinuum generation in dispersion-flattened fibers is studied theoretically.It is found that the flat spectral width of the supercontinuum generation in normal dispersion-flattened fiber can be increased from 66 nm to over 100 nm when the absolute value of the initial frequency chirps is increased from zero to 10.It is further found that initial frequency chirps are adverse to flat and wideband supercontinuum generation in anomalous dispersion-flattened fiber,and when the absolute value of the frequency chirps is increased to a certain degree,supercontinuum spectrum even can not be achieved.
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.
