Which wavelengths used to Find Fiber cut and Fiber Losses?

Question

Accepted Answer

OTDR uses wavelengths of 1310 nm and 1550 nm to find fiber cut and fiber losses.

OTDR (Optical Time Domain Reflectometer) is used to locate fiber cuts and measure fiber losses.
OTDR sends a pulse of light into the fiber and measures the time and intensity of the reflected signal.
1310 nm wavelength is used for shorter distances and 1550 nm for longer distances.
Fiber losses can also be measured using a light source and power meter.
Light source emits a known amount of light and power meter measures the amount of light received at the other end.

Top Reliance SMSL Fttx Planning Engineer interview questions & answers