摘要
研究了非平衡光纤Mach-Zehnder干涉仪解调N元DFB阵列传感信号时的偏振衰落问题。运用邦加球和光纤中偏振光传输理论,利用模型的等效简化,通过详细的理论分析,得到优化控制下阵列传感信号最低可见度的下限表达式,并通过计算机仿真,验证了结果的正确性,详细分析了仿真实验的结果。
The signal polarization fading of N-element DFB laser sensor array demodulated by unbalance fiber Mach- Zehnder interferometer is investigated in this paper. With the Poincare sphere and the optical wave-guide theory, the theoretical model is simplified. Through the theoretical analysis, the expression of visibility lower limit for the minimum visibility of N-element sensor array under optimum control is got. The result of the cyber-simulation experiment testify the expression. At last,the result of cyber-simulation experiment is analyzed.
出处
《激光与红外》
CAS
CSCD
北大核心
2008年第1期63-66,共4页
Laser & Infrared
基金
国防科技重点实验室基金项目(51448040204JB1101)资助
