Shimamoto A, Tanaka K
Appl Opt. 1996 Dec 1;35(34):6767-74. doi: 10.1364/AO.35.006767.
The performance of a multifiber optical lever was geometrically analyzed by extending the Cook and Hamm model [Appl. Opt. 34, 5854-5860 (1995)] for a basic seven-fiber optical lever. The generalized relationships between sensitivity and the displacement detection limit to the fiber core radius, illumination irradiance, and coupling angle were obtained by analyses of three various types of light source, i.e., a parallel beam light source, an infinite plane light source, and a point light source. The analysis of the point light source was confirmed by a measurement that used the light source of a light-emitting diode. The sensitivity of the fiber-optic lever is inversely proportional to the fiber core radius, whereas the receiving light power is proportional to the number of illuminating and receiving fibers. Thus, the bundling of the finer fiber with the larger number of illuminating and receiving fibers is more effective for improving sensitivity and the displacement detection limit.
通过扩展Cook和Hamm模型[《应用光学》34, 5854 - 5860 (1995)]对基本的七光纤光学杠杆进行几何分析，以研究多光纤光学杠杆的性能。通过分析三种不同类型的光源，即平行光束光源、无限平面光源和点光源，得出了灵敏度与光纤芯半径、照明辐照度以及耦合角之间的位移检测极限的广义关系。通过使用发光二极管光源的测量证实了对点光源的分析。光纤杠杆的灵敏度与光纤芯半径成反比，而接收光功率与照明和接收光纤的数量成正比。因此，将更细的光纤与更多数量的照明和接收光纤捆绑在一起对于提高灵敏度和位移检测极限更有效。
