摘要
详细分析计算了 n路并行传感器系统的输出功率谱 ,发现系统的噪声主要由激光器的随机位相噪声所决定。噪声级主要由激光相干时间 Tc决定。理论计算与实验结果完全一致。
The output power spectrum of a sensor system with n-sensors arranged in parallel has been analyzed theoretically and calculated in detail. The calculated result shows that the noise of the sensors system mainly came from laser random phase noise and the noise level was mainly decided by the coherence time of the laser diode. The theoretical calculation agrees with our observation very well.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1998年第8期703-706,共4页
Chinese Journal of Lasers
关键词
激光器
噪声
光纤传感器
laser, noise, fiber-optic sensor system
