Firstly,the JME（Jones matrix eigen） method is used to simulate the statistical characteristics of first- and second-order PMD in dispersion management system. Then,with help of the CNLSE （coupled nonlinear Schrodin...Firstly,the JME（Jones matrix eigen） method is used to simulate the statistical characteristics of first- and second-order PMD in dispersion management system. Then,with help of the CNLSE （coupled nonlinear Schrodinger equations） ,the effects of PMD on DMS （dispersion managed soliton） transmission is studied with a variational method. The simplified relationships of the statistical parameters of second-order and first-order of PMD in dispersion management system have been gotten,from which the detailed information of second-order can be obtained, if the condition of DGD is given. The results have shown that the first and second-order PMD （polarization mode dispersion） vectors influence the evolution of energy and Mean square of time displacement of DMS in high-speed bit rates systems. When DPMD^1st〉0.3 ps/km^1/2 ,we must consider some means of control（for example the filter） to restrain the PMD.展开更多
Statistical distributing and magnitude of the first and second-order polarization mode dispersion （PMD） vectors are evaluated and the timing displacements of its effects on dispersion-managed soliton （DMS） are als...Statistical distributing and magnitude of the first and second-order polarization mode dispersion （PMD） vectors are evaluated and the timing displacements of its effects on dispersion-managed soliton （DMS） are also given with help of coarse-step approach, such as Jones matrix （JME） and coupled nonlinear SchrSdinger equations （CNLSE）. The results showed that the coarse-step approach can not only simulate the statistical characteristics of PMD, but also compute the nonlinear pulse characteristic of timing and energy jitters evolution affected by PMD. The presented results are very useful to simplify the measurement of second-order PMD and instructively reveal the degree of PMD effects in DMS systems.展开更多
In this paper, the dispersion managed soliton (DMS) transmission equation is built on considering the effects of polarization mode dispersion (PMD) and filter control. The DMS transmission of filtering control in cons...In this paper, the dispersion managed soliton (DMS) transmission equation is built on considering the effects of polarization mode dispersion (PMD) and filter control. The DMS transmission of filtering control in constant birefringence fibers is firstly analyzed by varitional method, from which the evolving rules of characteristical DMS parameters are obtained. Secondly, the stability of DMS transmission and its timing jitter are investigated in the random varying birefringence fibers with the conventional model of PMD. The results reveal that filter control DMS system has powerful robustness to PMD effects and DMS's timing jitter can be decreased considerably with the help of filters.展开更多
文摘Firstly,the JME（Jones matrix eigen） method is used to simulate the statistical characteristics of first- and second-order PMD in dispersion management system. Then,with help of the CNLSE （coupled nonlinear Schrodinger equations） ,the effects of PMD on DMS （dispersion managed soliton） transmission is studied with a variational method. The simplified relationships of the statistical parameters of second-order and first-order of PMD in dispersion management system have been gotten,from which the detailed information of second-order can be obtained, if the condition of DGD is given. The results have shown that the first and second-order PMD （polarization mode dispersion） vectors influence the evolution of energy and Mean square of time displacement of DMS in high-speed bit rates systems. When DPMD^1st〉0.3 ps/km^1/2 ,we must consider some means of control（for example the filter） to restrain the PMD.
基金This work was supported by the National Natural Science Foundation of China (No. 60132040)the Guangdong Natural Science Foundation Project (No.04300855).
文摘Statistical distributing and magnitude of the first and second-order polarization mode dispersion （PMD） vectors are evaluated and the timing displacements of its effects on dispersion-managed soliton （DMS） are also given with help of coarse-step approach, such as Jones matrix （JME） and coupled nonlinear SchrSdinger equations （CNLSE）. The results showed that the coarse-step approach can not only simulate the statistical characteristics of PMD, but also compute the nonlinear pulse characteristic of timing and energy jitters evolution affected by PMD. The presented results are very useful to simplify the measurement of second-order PMD and instructively reveal the degree of PMD effects in DMS systems.
基金This work was supported by the National Natural Science Foundation under Grant No.69982006 and 60132040.
文摘In this paper, the dispersion managed soliton (DMS) transmission equation is built on considering the effects of polarization mode dispersion (PMD) and filter control. The DMS transmission of filtering control in constant birefringence fibers is firstly analyzed by varitional method, from which the evolving rules of characteristical DMS parameters are obtained. Secondly, the stability of DMS transmission and its timing jitter are investigated in the random varying birefringence fibers with the conventional model of PMD. The results reveal that filter control DMS system has powerful robustness to PMD effects and DMS's timing jitter can be decreased considerably with the help of filters.
