用阵列波导光栅实现光纤传感器的复用  

Multiplexing of Fiber Optical Sensors Employing Arrayed Waveguide Grating

作　　者：倪小琦[1] 陈绪兴[1] 王鸣[1] 

机构地区：[1]南京师范大学物理科学与技术学院,江苏南京210097

出　　处：《南京师范大学学报（工程技术版）》2006年第4期62-65,共4页Journal of Nanjing Normal University(Engineering and Technology Edition)

基　　金：江苏省高技术研究计划资助项目(BG2003024)

摘　　要：阵列波导光栅(AWG)是密集波分复用(DWDM)光网络中的关键器件,具有滤波特性好、性能稳定、串扰小的优点.介绍了AWG的结构和原理,在此基础上提出了用AWG实现光纤法布里珀罗(F P)传感器复用的方案.可调谐激光器和AWG的联合使用实现了时分复用和波分复用,系统的复用能力决定于可调谐光源的带宽、AWG的通道数和自由频谱范围.采用传统的强度法对传感器进行解调,解调结构简单,容易实现,传感器间无串扰.Arrayed waveguide grating （AWG） is a key device in the DWDM optical network and has the advantages of good filter capacity, steady performance and low crosstalk. The configuration and principle of AWG are described, and a scheme of multiplexing of fiber optical FP sensors is presented. The combination of tunable laser source （TIS） and AWG makes time division multiplexing and wavelength division multiplexing possible. The number of sensors multiplexed in this system depends on the bandwidth of TLS, the number of AWG channels and AWG free spectrum range （FSR）. Sensors are demodulated with the conventional method of intensity which is of simple configuration and easily carried out. There is little crosstalk between sensors.

关 键 词：光纤光学 阵列波导光栅(AWG) 光纤FP传感器 复用 

分 类 号：TN253[电子电信—物理电子学]