Chen Fan, Cao Zhuangqi, Shen Qishun, Deng Xiaoxu, Duan Biming, Yuan Wen, Sang Minghuang, Wang Shengqian
Opt Express. 2005 Dec 12;13(25):10061-5. doi: 10.1364/opex.13.010061.
An improved scheme for displacement measurement using the ultrahigh-order guided modes in a symmetrical metal-cladding optical waveguide is proposed. Based on this idea together with the lock-in amplification technique, a sensor with a stable displacement resolution of 3.3 pm is experimentally demonstrated without any complicated servo system.
提出了一种利用对称金属包覆光波导中的超高阶导模进行位移测量的改进方案。基于这一想法并结合锁相放大技术，实验演示了一种无需任何复杂伺服系统的、具有3.3皮米稳定位移分辨率的传感器。
