摘要
用宽带光源和可调谐光滤波器(TOF)构成可调谐窄带光源,对测量光纤光栅(FBGs)阵列和参考FBGr进行波长扫描,借助光电探测器和信号处理系统实现复用传感系统的解调。实验证明,该解调方案是有效可行的,且可获得较高的信噪比和测量精度,具有对40个以上FBGs传感网络进行寻址解调的潜在能力。
Sensing fiber Bragg grating (FBGs) array and reference FBGr are scanned by a tunable narrowband light source composing a broad-band source and a tunable optical filter (TOP). Multiplexed sensing system is then demodulated by virtue of photo-detector and signal processing system. Experiments demonstrate that this demodulation scheme is feasible and higher signal-noise ratio and measuring accuracy can be acquired. Furthermore, this system has the potentiality of interrogating and modulating senor network with over forty FBGs.
出处
《光电子.激光》
EI
CAS
CSCD
北大核心
2004年第5期569-571,共3页
Journal of Optoelectronics·Laser