Dense Wavelength Division Multiplexing DWDM

Dense Wavelength Division Multiplexing DWDM Prerequisite Multiplexing Optical Fiber PCM SDH Transmission Fundamental WDM Wavelength division Multiplexing (WDM) technique increase the capacity of signal carrying medium. WDM technique assign different frequency / wavelength value to every incoming signal. These signals…
SDH Synchronous Digital Hierarchy

  SDH synchronous digital hierarchy. It is a transmission method. This method is used in optical fibre transmission system called SDH system. We have already discussed the basic concepts of the transmission system. This video will give you the basic concept…
SDH SONET 1

PDH SDH SONET. SDH and SONET are transmission equipment. To understand their working, we need to discuss the PDH structure first. PDH Plesiochronous Digital Hierarchy. Plesio = Near                    Chronous  = Time.…
Optical Fiber

OPTICAL FIBER Optical fiber is a type of guided medium to transport information from one point to another point.Information travels in the form of light.Data capacity of fiber is very high due to light nature of the signal.It has some…
GPON Introduction

GPON Gigabit passive optical network is a running technology in Pakistan.Its implementation is in process and it will fulfill our high data rate requirement.In this video i am giving you a basic concept about GPON network.we will discuss the following…