›› 2015, Vol. 24 ›› Issue (4): 44202-044202.doi: 10.1088/1674-1056/24/4/044202
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
马林, 齐艳辉, 孙将, 康泽新, 简水生
Ma Lin (马林), Qi Yan-Hui (齐艳辉), Sun Jiang (孙将), Kang Ze-Xin (康泽新), Jian Shui-Sheng (简水生)
摘要: A high-sensitivity curvature sensor based on an up-taper-core-offset structure is proposed and demonstrated in this paper. Here two specially designed cascaded up-tapers with maximum diameters of 247 μm and 251 μm, respectively, are used as a cladding mode exciting component. The excited cladding modes will propagate in the cladding and re-couplers with the core mode at the core-offset jointing point. When the curvature is changed, the dip wavelength of the sensor will shift to a blue wavelength and an average curvature sensitivity of more than -12.5 nm/m-1 is achieved within the measured curvature intervals.
中图分类号: (Interference)