Q1: What is an OTDR used for?
A1: OTDR is a fiber optic instrument used to characterize, troubleshoot and maintain optical communication networks. OTDR testing is performed by transmitting and analyzing pulsed laser light through an optical fiber.
Q2: What is fiber loss?
A2: Optical fiber loss is the attenuation per unit length of optical fiber in dB/km, the level of fiber loss directly affects the transmission distance or the distance between relay stations, therefore, understanding and reducing the loss of optical fiber is of great practical significance for fiber optic communication.
Q3: What is an optical time domain reflectometer?
A3: The optical time domain reflectometer is a fiber optic tester used to test the characteristics of optical communication networks. OTDR is designed to detect, locate and measure events at any location on a fiber optic link. OTDR requires access to only one end of the link and works in a manner similar to a one-dimensional radar system. By providing graphical trace characteristics of the fiber under test, the user can obtain a graphical representation of the entire fiber link.
Tips: How to judge the fiber quality of OTDR?
Under normal circumstances, the slope of the OTDR test light curve body (single tray or several trays of fiber optic cable) is basically the same, if the slope of a section is larger, it indicates that this section is more attenuation. If the main body of the curve is irregularly shaped, and the slope is more undulating, curved, or arc-shaped, it indicates that the fiber quality is seriously deteriorated and does not meet the communication requirements.