Because it transmits data much faster, cooler, and with less chance of interference than metal cable.
In optical communication grounding effects and fading effects will be less it can also pass the information without any loss
Long Distance signal transmission!
long distance communication
LASER application in optical communication
using optical fibers....
WDM wavelength division multiplexing
becouse FM is applicable for line of sigth distance only. MAYANK S
G 655 used fiber long distance SM fiber G655, and G652 short distance used, G652 Nonzero fiber
physical
Gamma rays.
Fibre optic cable comes under different types: Single-mode Multimode These two optical fibre cable is used for long-distance communication. Single-mode has carried a single source of data. Multimode is used for multiple data communication.
Fiber optics is used for long distance communication due to its various advantages..
The optical fiber can be used both as unidirectional and bidirectional. The main application of optical fiber is in long-distance links, so there exists no need to employ them as unidirectional. For each direction different wavelengths are used to modulat the signals. At the same time many bidirectional signals can travel through the same optical fiber.