Curvature sensor using a highly birefringent photonic crystal fiber with two asymmetric hole regions in a Sagnac interferometer
Curvature sensor using a highly birefringent photonic crystal fiber with two asymmetric hole regions in a Sagnac interferometer
复制标题
DOI：
10.1364/ao.47.002520
复制
发表时间：
2008-05-01
期刊：
影响因子：
1.9
通讯作者：
Roy, Philippe
中科院分区：
文献类型：
--
作者：
Frazao, Orlando;Baptista, Jose M.;Roy, Philippe
提出了一种基于高双折射光子晶体光纤插入Sagnac干涉仪的曲率传感器。为此，设计并制备了一种新型的高双折射光子晶体光纤。光子晶体光纤的微结构区域的一半由大直径孔组成，而另一半包含小直径孔。由于这种几何形状，光纤芯从中心偏移，并且在光纤中出现高双折射。曲率应用于三个不同的纤维方向，范围为0.6-5米（-1）。温度和纵向应变的特点也是恒定曲率。该配置对这两个物理参数不敏感。(C)2008年美国光学学会。
A curvature sensor based on a highly birefringent (Hi-Bi) photonic crystal fiber inserted into a Sagnac interferometer is demonstrated. For this purpose, a novel Hi-Bi photonic crystal fiber was designed and fabricated. Half of the microstructured region of the photonic crystal fiber was composed by large diameter holes, while the other half contained small diameter holes. Because of this geometry, the fiber core was shifted from the center and high birefringence appears in the optical fiber. Curvature was applied for three different fiber directions for a range of 0.6-5 m(-1). Temperature and longitudinal strain was also characterized for constant curvature. The configuration showed insensitivity to these two physical parameters. (C) 2008 Optical Society of America.