Based on the related characteristics of optical waveguide and flexible optical materials, a flexible and stretchable optical waveguide structure oriented to tactile perception is proposed. The sensing principle of optical waveguide is based on mechanical deformation caused by output light loss. It overcomes the shortcomings of traditional optical waveguide devices, which are unable to conform to irregular surface. The flexible and stretchable optical waveguide is fabricated with nanoreplica molding method, and it has been applied to the measurement of pressure and strain in the field of tactile sensing. The flexible and stretchable optical waveguide had a strain detection range of 0 to 12.5%, and the external force detection range is from 0 to 23 × 10^–3 N.

基于光波导和柔性光学材料的相关特性，提出了一种面向触觉感知的柔性可拉伸光波导结构。光波导的传感原理是基于输出光损失引起的机械变形。它克服了传统光波导器件无法顺应不规则表面的缺点。采用纳米复制成型方法制备柔性可拉伸光波导，并将其应用于触觉传感领域的压力和应变测量。柔性可拉伸光波导的应变检测范围为0~12.5%，外力检测范围为0~23× ^10-3N 。