R. Jain, "Optical DWDM Networks,"Nortel Networks, November 5, 1999.

In the last five years dense wavelength division multiplexing networks have moved from research labs to deployment.

In this tutorial talk, we begin with recent DWDM records and present a sample of recent products and applications. Key technological developments that made DWDM possible will be explained. The discussion includes various recent fibers and issues that limit the bit rate and distance.

The survey includes recent product announcements from startups in this area including wavelength routers that allow multi-hop networks without intermediate electronic conversion.

New techonogies such solitons and Optical Time Division Multiplexing (OTDM), broadcast and select LANs will also be described.

This is a tutorial (as opposed to research) level technical talk. This talk covers the following topics:

• Sparse and Dense WDM
• Recent WDM Records
• WDM Applications
• Sample Products
• Key Components
• Directional Couplers
• Types of Fibers I
• Attenuation and Dispersion
• Types of Fibers II
• Four-Wave Mixing
• Four-way Mixing (FWM)
• Types of Fibers III
• Polarization Mode Dispersion
• Wavelength Grafting Router
• Wavelength Routed Networks
• Optical Cross Connect
• Upcoming Technologies
• Optical Wireless
• Optical Time Division Muxing
• Solitons
• Optical Packet Switching
• Architecture of KEOPS Switch
• Optical CDMA
• Other Research Topics

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