FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Wavelength-division multiplexing (WDM) is the technique of transmitting multiple channels of information through a single optical fiber by sending multiple light beams of different wavelengths through the fiber, each modulated with a separate information channel.

Detailed explanation-2: -Wavelength Division Multiplexing (WDM) is the technology used in transceivers for transporting different data streams simultaneously over a single fiber optic cable. This means that a single optical fiber can be used for multiple data services instead of having to use one fiber per service.

Detailed explanation-3: -Fiber-optic cables transmit data via fast-traveling pulses of light. Another layer of glass, called “cladding, ” is wrapped around the central fiber and causes light to repeatedly bounce off the walls of the cable rather than leak out at the edges, enabling the single to go farther without attenuation.

Detailed explanation-4: -Multimode fiber is more commonly used in LAN backbones within buildings. Multimode fiber uses LEDs as the light source, while single-mode fiber generally uses laser light sources. Furthermore, single-mode fiber is typically more expensive than multimode.

Detailed explanation-5: -An optical fibre consists of a glass core, where the light signal is sent through and which is surrounded by another kind of glass (“cladding”), so that the light signal is reflected and therefore stays in the core.