Fig. 1. Design and waveguiding principle of polymer optical fibers

Fig. 2. MAPbBr₃ fluorescent quantum dot energy level distribution

Fig. 3. Fabrication process flow of polymer optical fibers

Fig. 4. Optical properties of polymer optical fibers. (a) Microscopic images of a polymer optical fiber with a diameter of 534 μm before and after cladding coating; (b) Microscopic images of a polymer optical fiber with a diameter of 1120 μm before and after cladding coating (c) Fiber images before and after light transmission under reflective coupling mode; (d) Fiber images before and after light transmission under transmissive coupling mode

Fig. 5. Mechanical properties of polymer optical fibers. (a) Bending and kinking; (b) Strain-at-break test images;(c) Mechanical strength test images

Fig. 6. Schematic diagram of the temperature sensing experimental setup (MMF: muti-mode fiber; POF: polymer optical fiber). (a) Schematic of the temperature sensing experiment; (b) Laser output power as a function of time; (c) Photograph of the temperature sensing experimental setup

Fig. 7. [in Chinese]

Fig. 8. Calibration of the sensor response time. (a) Reproducibility evaluation of the sensor under different temperature conditions; (b) Response time of the sensor

Fig. 9. [in Chinese]