1.0 DWDM Explained | FOADM ||ROADM system|| Wavelength-Frequency
This is the first lecture in our new topic: Transmission.
In this session, we set the foundation for upcoming lessons by explaining, in a simple and clear way — the two types of OADM (Optical Add-Drop Multiplexer) systems: FOADM and ROADM.
In this video, we break down:
🔹 What FOADM is and how it works
🔹 What ROADM is and why it’s essential for modern optical networks
🔹 The key differences between FOADM and ROADM
Whether you're a telecom professional, network engineer, or student eager to understand optical networking, this session offers a clear, practical explanation of how FOADM and ROADM components function in real-world networks.
Chapters
00:00 Intro
00:42 What is a Transmission network?
03:06 Wavelength-Frequency relationship
05:31 Working wavelength
10:31 Definition and features of DWDM
14:30 Common NE types of DWDM
18:17 FOADM System
30:06 ROADM System
40:20 Directionless/Directional and Colored/Colorless ROADM
51:25 Recap-Types of ROADM
52:32 Closing
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#DWDM #FOADM #ROADM #OpticalNetworking #TelecomTraining #FiberOptics