中文摘要：

基于 Mach-Zehnder 干涉仪把传感器弄弯的简单、紧缩的纤维被建议。有一段 10 公里的 photonic 水晶纤维(PCF ) 被与二常规单个模式纤维折叠空气洞由组成拼接一弯曲的所有纤维传感器。0.53 nm/m 的敏感 < 啜 class= “ a-plus-plus ” > 1 从 0 ～ 8.514 m 为弯曲范围在 1586 nm 被获得 < 啜 class= “ a-plus-plus ” > 1 。温度敏感是很低的。测量错误由于温度效果是大约 8.68

英文摘要：

A simple and compact fiber bending sensor based on the Maeh-Zehnder interferometer was proposed. A photonic crystal fiber （PCF） with a length of 10mm was spliced by collapsing air holes with two conventional single mode fibers to consist of an all fiber bending sensor. The sensitivity of 0.53nm/m-1 was obtained at 1586nm for the curvature range from 0 to 8.514 m-1. The temperature sensitivity was very low. The measurement error due to the temperature effect was about 8.68x10-3 m-1/℃, and the temperature effect in the curvature measurement could be ignored. This device can avoid the cross sensitivity of the temperature in the curvature measurement.