| 基于自由空间光的可调谐DPSK信号解调器 |
| |
| 引用本文： | 刘国栋,吴重庆,毛雅亚,王甫,李政勇.基于自由空间光的可调谐DPSK信号解调器[J].北方交通大学学报,2014(3):164-167. |
| |
| 作者姓名： | 刘国栋 吴重庆 毛雅亚 王甫 李政勇 |
| |
| 作者单位： | 北京交通大学教育部发光与光信息技术重点实验室,光信息科学与技术研究所北京100044 |
| |
| 基金项目： | 国家自然科学基金资助项目（61275075,11274037）;北京市自然科学基金资助项目（4132035） |
| |
| 摘 要： | 提出了一种基于自由空间差分延时干涉的可快速调谐的DPSK信号解调器.实现了10Gb/s以及40 Gb/s NRZ-DPSK信号的解调,误码率小于10-9.实验结果证明该解调器适用于10Gb/s及更高比特速率NRZ-DPSK信号的解调,调谐时间可达μs,调谐范围从2.5 Gb/s到40 Gb/s.与波导型马赫-曾德尔型差分延迟干涉解调器相比,能实现快速调谐,可用于克服因信号抖动导致的时钟失步等问题.
|
| 关 键 词： | DPSK 可调谐 解调 干涉 自由空间 |
A tunable demodulator of DPSK signal based on free space light |
| |
| LIU Guodong,WU Chongqing,MAO Yaya,WANG Fu,LI Zhengyong.A tunable demodulator of DPSK signal based on free space light[J].Journal of Northern Jiaotong University,2014(3):164-167. |
| |
| Authors: | LIU Guodong WU Chongqing MAO Yaya WANG Fu LI Zhengyong |
| |
| Institution: | ( Key Lab of Education Ministry on Luminescence and Optical Information Technology, Institute of Optical Information,Beijing Jiaotong University, Beijing 100044, China) |
| |
| Abstract: | A new scheme of demodulating DPSK signal is proposed based on structure of free space differential delay interference which is suitable for variable bit-rate and the tuning speed is faster than the existed demodulator.The demodulation of variable bit-rate NRZ-DPSK formats of 10 Gb/s and 40 Gb/s is demonstrated,and the BER after demodulating is lower than 10-9.It is proved that the proposed demodulator can be used to demodulate 10 Gb/s to tens Gb/s bit rate DPSK signal,and the tuning time reaches to μs and the tuning range can be achieved between 2.5 Gb/s to 40 Gb/s.Compared to other DPSK demodulators based on MZ structure,the tunable speed of this demodulator is tunable and can overcome the phase jitter and out of sync of the clock. |
| |
| Keywords: | differential phase shift keying tunable demodulation interference free space light |
| 本文献已被 维普 等数据库收录！ |
|
