Optical fiber communication is a communication mode that uses light wave as carrier and Optical fiber as transmission medium. Fiber optic communication is widely used in the communication field due to its long transmission distance, large communication capacity, high communication quality, low engineering cost, and high security and confidentiality. Optical time-domain reflectometer (OTDR) is the

As we know, OTDR measure optical fibers by Rayleigh Scattering principle, but what is Rayleigh Scattering? Rayleigh scattering is a physical phenomenon, which means that when light goes through the medium, part of the energy will be scattered. When the size of the scattering particles is much smaller than the wavelength of the incident light

OTDR (Optical Time Domain Reflectometer) is an important testing tool used to detect the integrity of fiber optic cables. It measures the reverse scattering and Fresnel reflection of light in the fiber optic system to provide information on cable loss and connection points. OTDR is a powerful testing tool that helps technicians evaluate the performance