An integration of an optical transceiver with the employed fiber, carefully selection is necessary. Different types of optical transceivers will employ different types of fibers. Single mode transceivers are paired with single mode fibers which are designed for long range communication. Multi mode transceivers communicate over short range distances using multi mode fibers. The transverse core, attenuation, and dispersion characteristics of the fiber must be provided within the ranges demanded by the transceiver. Such mismatches can incur signal loss, lowered data transfer rates, and increase communication errors. This is why optical communication needs robust due diligence – proper matching mostly eliminates those problems.