Figure 3.

Mechanical and optical properties of elastic fibers. (a) Physical diagrams of U-shaped optical fiber with different bending radii. (b) Optical transmission changes of optical fibers under different bending radii. (c) The bending radius-normalized light intensity relation diagram at 650 nm. (d) Strain-normalized intensity curve of elastic fiber at 650 nm. (e) Propagation loss of elastic fiber, measured in air by cutback method. (f) The curves of optical transmission of the fiber subjected to a lateral pressure of 0 to 100 N. (g) The pressure-normalized light intensity relationship diagram at 650 nm.