As the core transmission medium of modern communication and sensing, the performance parameters of optical fiber directly affect the system bandwidth, transmission distance, and stability. Working wavelength 850nm/1310nm/1550nm, ITU-T G.652 Multimode/Single Mode Transmission Window. Attenuation coefficient ≤0.35 dB/km @1310nm, IEC 60793-1-40,determine the maximum transmission distance. Core diameter multimode 50±3μm / 62.5±3μm (IEC 60793-1-20), single mode 8.2±0.5μm.