摘要
报导了利用行波半导体激光放大器进行的１４０Ｍｂｉｔ／ｓ传输实验，对光放大器增备电流、增益。输入功率以及输出－输入功率特性进行了测试，并分析了光滤波器对传输性能的影响。实验结果表明，行波半导体激光放大器对于１４０Ｍｂｉｔ／ｓ数字信号具有较好的线性增益，可使传输距离延长４０～５０Ｋｍ，且传输信号码形没有畸变。另一方面，放大器偏振态控制及光学滤波器的性能对于传输特性有重要影响。
A 140 Mbit/s transmission experiment using the travelling-wave semiconductor laser amplifier(TW-SLA)is reported in this paper.The characteristics of gain-current,gain-input power and input power-ouputpower of TW-SLA are measured and the influence of the optical filter on the transmission characteristics isanalyzed. Experimental results show that TW-SLA has a good linear gain for the 140 Mbit/s digital signal.The repeater distance can be extended 40～50 kilometres with no transmission signal distortion. On theother hand,the characteristics of the optical filter and the control of polarization-state of the amplifier haveanimportant influence on the transmission characteristics.
出处
《高技术通讯》
CAS
CSCD
1995年第5期14-16,共3页
Chinese High Technology Letters
基金
863计划和"八五"攻关项目
