The Fundamentals of an OTDR The Basics An OTDR combines a laser source and a detector to provide an inside view of the fiber link. The laser source sends a signal into the fiber where the detector receives the light reflected from the different elements of the link. This produces a trace on a graph
Why OTDR plays an important role in Fiber Testing? Why not use a economic Optical Power Meter to replace with OTDRs? Because the main advantage of using an OTDR is the single-ended test—requiring only one operator and instrument to qualify the link or find a fault in a network. And from the other perspective, OTDR
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
Most OTDRs have an “auto test” function, but these functions are not foolproof. Most problems with OTDR tests occur when untrained users use the autotest function without having an understanding of how the instrument works, what a good trace looks like and, most importantly, what are the characteristics of the cable plant they are testing
The Sor is a file format which is often create by OTDR. The file saves OTDR traces information like fiber length, attenuation, return loss and OTDR itself information, and some other filed (record) that added by OTDR users. Generally, sor files can not opened directly by normal softwares/applications. Every OTDR manufacturer provide their own particular
FirstFiber Technologies works on OTDR and Telecom Testig Instruments Development. The mini and pro OTDRs have got reputations from global customers. OEM and tech supports available
