| 2DPSK和4DPSK系统的色散比较 |
| |
| 引用本文： | 贺敏,张兴周,于翔.2DPSK和4DPSK系统的色散比较[J].应用科技,2005,32(11):7-9. |
| |
| 作者姓名： | 贺敏 张兴周 于翔 |
| |
| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001 |
| |
| 摘 要： | 研究了不归零2DPSK和4DPSK系统的色度色散（CD）和一阶偏振模色散（PMD）.综合放大器噪声、脉冲波形和光/电滤波器,以及系统存在的彩色色散和一阶偏振模式色散等因素,建立了DPSK系统模型,仿真计算了线性传输系统的光功率损耗,结果表明, 4DPSK系统的色度色散和一阶偏振模色散的功率损耗比2DPSK系统更低.
|
| 关 键 词： | DPSK 色度色散 偏振模色散 |
| 文章编号： | 1009-671X（2005）11-0007-03 |
| 收稿时间： | 2004-09-27 |
| 修稿时间： | 2004年9月27日 |
2DPSK vs. 4DPSK: comparison of dispersion tolerances |
| |
| HE Min,ZHANG Xing-zhou,YU Xiang.2DPSK vs. 4DPSK: comparison of dispersion tolerances[J].Applied Science and Technology,2005,32(11):7-9. |
| |
| Authors: | HE Min ZHANG Xing-zhou YU Xiang |
| |
| Abstract: | This paper studies the impact of chromatic dispersion (CD) and first-order polarization-mode dispersion (PMD) on binary differential phase-shift keying (2DPSK) or quaternary DPSK (4DPSk) systems with nonreturnto-zero (NRZ) formats. Taking account of amplifier noise, pulse shapes, optical and electrical filtering, CD, and PMD, a mathematical model is firstly established, then the simulation is made with a linear transmission system and optical power loss is evaluated. The results show that 4DPSK exhibits lower CD and PMD power loss than 2DPSK. |
| |
| Keywords: | DPSK CD PMD |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
