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


Q : What is the operating system for the OTDR? A: The operating system for the OTDR is Windows CE Q: What Modules can be added for the OTDR.A: The OTDR supports power meter module, light source module, micro scope module, able to add touch screen feature. Q: What Pulse width should use when testing the fiberA: The key is to always

OTDR (Optical Time Domain Reflectometer) is used for test a fiber cable. By OTDR, users can get these parameters of a fiber, Fiber Length Total attenuation Event List Point Loss Break Location Micro Bending Loss @wavelengths (1310nm, 1550nm, etc) Splitter’s insertion loss Return Loss etc Some modern OTDRs integrates with many other common functions, VFL


The optical time domain reflectometer (OTDR) sends a series of light bursts into the optical fiber for processing test. The way to test is to receive the light signal on the same side of the incoming, because the incoming signal will scatter and reflect back when it encounters a medium of different refractive indexes. The