提出了一种用以提高强度调制型光纤传感器稳定性的全光纤三节点补偿网络，并给出了受环境影响最小的最佳网络结构参数，介绍了网络参数标定方法和节点参数受温度、振动等因素影响的结构。

THis Paper derscribes a novel all-fiber compensation network with three access-couplers for improving the stability of amplitude modulated fiber optical sensors. and its optimumstructure which is indepent on environment effects. We also describe the sealing method of the com-pensation network and the experiment of its coupler parameter variation caused by tempertare andvibration. The expreiment results showed that the compe nsation network can effectivelv resist themeasurement error affected by the in tensity variation of the optieal souce and other transmission loss.

TP212 TN25

国家自然科学基金