| 1. | Midzone of the phragmoplast was also a region where assembly of birefringent fibers was being initialed .
成膜体的中段也是双折射的纤丝装配起动的区域 |
| 2. | 3 ) coupled higher - order nonlinear schr ( ? ) dinger equations ( chnlse ) , governing the evolution of two orthogonal polarization components of ultrashort optical pulse in birefringent fiber , are derived from the dispersion relation
3 )从色散关系出发，推导了描述超短光脉冲不同偏振分量在双折射光纤中传输特性的耦合高阶非线性薛定谔方程( chnlse )与用多重尺度法得到的相同。 |
| 3. | The general nonlinear propagation equations of four - lightwaves in birefringent fibers are deduced . the characteristics of polarization mode dispersion in 4 + 10gb / sdwdm system in dispersion - flattened fibers is studied . our results show that pmd exerts a detrimental influence on 4 x logb / sdwdm system in limiting transmission rate and the channel numbers
本论文研究波分复用( wdm )系统中偏振模色散的影响，主要工作包括下面两个部分：一、导出了四波长光波在双折射光纤中传输所满足的一般非线性耦合方程；在此基础上，研究色散平坦光纤中4 10gb sdwdm系统的偏振模色散特性，并且进一步研究了偏振模色散对不同信道间隔的4 10gb sdwdm系统的影响。 |
| 4. | Electric current sensors employing highly circularly birefringent fiber are proposed . also a novel scheme to compenwte for laser source power and ambient temperature fluctuation is proposed here . this scheme is based on the traditiona1 signal - processing scheme with simpler and more effective design
对应用高圆双折射光纤的电流传感器进行了研究，在传统的信号处理方案上，保留其原方案优点，提出新的功率补偿方案，对应用高圆双折射光纤电流传感器的温度效应进行研究。 |
| 5. | We introduce a model of random birefringent single mode fibers , and the general nonlinear propagation equations of dual - lightwaves in random birefringent fibers are deduced . the characteristics of polarization mode dispersion in 2 + 10gb / swdm system is studied . it is found that pmd in wdm system can be effectively suppressed by the synchronous modulation technique
我们引入了随机扰动双折射单模光纤模型，导出了双波长的光波在随机双折射光纤中的非线性脉冲传输方程；在此基础上，研究了偏振模色散对2 10gb swdm系统中脉冲序列传输的影响，并采用同步幅度调制控制技术有效地降低了偏振模色散的影响。 |
