光纤损耗对零色散波长附近传输的暗孤子脉冲的影响

The influence of dielectric loss on the dark soliton pulse near the zero-dispersion wavelength

利用一种解析的方法研究有损耗的光纤零色散波长附近传输的光脉冲,在正常色散区,得到了稳定的暗孤子解析解,并由此讨论了存在小损耗时暗孤子的形成条件,以及小损耗对暗孤子的中心位置,相位,振幅,频率等参数的影响。

The analytical method is used to study optical pulse which is near the zero- dispersion wavelength in the fiber with dielectric loss. We get dark solitary solution in normal dispersion region. According to this solution, we discuss the conditions for forming dark solitons in the fibers with small dielectric loss, and the small dielectric loss＇s influence on propagation properties of the dark solitons, such as centerposition, soliton phase, amplitude and frequency.