作　　者： (田二明）; (韩建宁）;

机构地区： 中北大学信息与通信工程学院,山西太原030051

出　　处： 《中北大学学报（自然科学版）》 2017年第4期493-497,共5页

摘　　要： 研究了双芯熊猫光纤经侧面抛磨后的折射率传感特性,并具体分析了抛磨、纤芯尺寸、纤芯、折射率对比度对传感器特性的影响.通过侧面抛磨方式,可以使得熊猫光纤一侧气孔侧壁与外界待测液体接触,这有助于加快响应速度;同时利用Mach-Zehnder干涉检测方式可以获得较高的流体折射率检测灵敏度.仿真表明,经过优化的双芯熊猫光纤结构可望使系统检测液体折射率的灵敏度达到3.8×10-5 RIU(Refractive Index Unit). It have been studied that the refractive index sensing characteristics of the double core panda fiber side polished, and analyzed the effects of polishing, core size, core and refractive index on the characteristics of the sensor detail. Through the side polishing method, the panda fiber lateral wall stomata can be connected with outside liquid, this helps to speed up the response. And we can acquire the higher detection sensitivity of the liquid refractive index. The simulation results show that the optimized structure of the double-core panda optical fiber is expected to achieve a sensitivity of 3.8 × 10-5 RIU.

关 键 词： 双芯熊猫光纤 折射率传感特性 传感灵敏度