基于仿真软件的DPSK光纤传输性能研究  

The performance study of DPSK optical fiber transmission based on simulation software

作　　者：殷爱菡[1] 周薇[1] 焦曰里[1] 刘方仁[1] 

机构地区：[1]华东交通大学信息工程学院,南昌330013

出　　处：《光通信技术》2010年第3期54-56,共3页Optical Communication Technology

摘　　要：介绍了DPSK码型的产生原理,通过仿真软件模拟级联调制器产生各种DPSK光调制码型,给出了频谱,并基于仿真软件建立了DPSK光纤传输模型,重点考虑了光放大器的自发辐射(ASE)噪声对DPSK系统的性能影响。实际仿真结果表明了ASE噪声是限制级联DPSK传输系统传输距离的最主要因素。Introduced the principle of differential phase-shift keying （DPSK）pattem generated at first, proves the feasibility of generating DPSK optical modulation formats with cascaded modulators with software simulation, and gives the spectrum. DPSK optical-fiber transmission model is built based on simulation software, with the main focus on the effects of the spontaneous emission of optical amplifier （ASE） noise on the DPSK system. Actual simulation results show that the ASE noise limits transmissive distance of the cascaded DPSK transmission system.

关 键 词：差分相移键控(DPSK) 光纤传输 光放大器自发辐射(ASE)噪声 

分 类 号：TN915[电子电信—通信与信息系统]