The WDM System

IntroductionIn fiber optic communications, Wavelength Division Multiplexing (WDM) is a technology that multiplexes a number of optical carrier signals into a single optical fiber by using different wavelengths of laser light. This technique allows bi-directional communications on a fiber strand, as well as capacity multiplication. A WDM system (Figure 1) uses a multiplexer at the […]

Fiber Optical Technology Comprehensive Summary and Guide

How does it work? We may think that digitized information is “encoded” or placed in pulses of light for transmission. The information travels along the fiberglass at the speed of light (186,000 miles / second). When it reaches its destination, a decoder converts the light information into an image, audio. Fiber optic cable Fiber optic […]

Present Great Developments and Expections for FTTH

FTTH, fiber for the home, you know. Provides access technology to the end customer. There is a situation that fiber optic cables extend to the ONU (Optical Network Unit) depending on the customer’s facilities, they also provide the customer with virtually unlimited bandwidth for all applications such as video, voice and data High speed, and […]