Page 8 - Optical Switching And Networking Handbook

01_200023_FM/Bates 1/17/01 10:10 AM Page vii

Contents vii

Wave-Division Multiplexing 114
Why DWDM? 116
Installing More Fiber Just Does Not Do It! 122
Getting There from Here 123

Chapter 6 Optical Switching Systems and Technologies 125
Optical Switching in the Metropolitan Network 127
Wide-Area Networks 128
Metropolitan Migration 129
The Need for Metropolitan DWDM Networks 133
Dynamic Optical Add-Drop Multiplexing 133
Ring Interconnection 134
Bottlenecks at the Switch 135
Multiple Choices Available 136
Mirror-Mirror on the Wall . . . 136
Lucent Takes to the Waves 140
MEMS Enhance Optical Switching 142
Economical MEMS 143
Scalable Solutions 144
Easy Upgrades 145
Not Everyone Is Convinced 146
Agilent Does Optical Switching Differently 146
Single Big Fabric or Multiple Smaller Fabrics? 146
Bubble Bubble, Who Has the Bubble? 149
Alcatel Blows Bubbles 150

Chapter 7 Optical Networking and Switching Vendors 153
The Growing Demand 155
Caution: Standards Committees at Work 155
Let the Buying Begin 160
Is There an Alternative in the House? 161
Pay as You Grow 163
Bandwidth Demand Driven by Growing Competition 163
New Applications 164
Applications for DWDM 165
If You Cannot Build It, Buy It 165
Building Block of the Photonic Network 166
The Final List 171