Chapter 8 Photonic Networks. Contents Basic Networks SONET/SDH Standards Broadcast & Select WDM Networks Wavelength-Routed Networks.

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Presentation transcript:

Chapter 8 Photonic Networks

Contents Basic Networks SONET/SDH Standards Broadcast & Select WDM Networks Wavelength-Routed Networks

Basic Networks Stations or Data Equipment Terminal (DAT) Networks - Local Area Networks (LAN) - Metropolitan Area Network (MAN) - Wide Area Network (WAN) Node Topology - Linear Bus - Ring - Star Switching Routing Protocol Router

3 Network Topologies Bus Topology Ring Topology Star Topology

Passive Linear Bus Topology Simplex linear bus with uniformly spaced stations

Liner bus versus star coupler

SONET/SDH STS-1 SONET frame with Mb/s STS-N SONET frame with 51.84N Mb/s N=1,3,12,24,48,192 (90 bytes/row)(9 rows/frame)(8 bits/byte) (125 microsecond/frame)=51.84 Mb/s

SONET/SDH SONET levelElectrical levelLine rate (Mb/s)SDH equivalent OC-1STS OC-3STS STM-1 OC-12STS STM-4 OC-24STS STM-8 OC-48STS STM-16 OC-96STS STM-32 OC-12STS STM-64

Technical Information For more information about SONET/SDH standards and their range, receiver sensitivity, optical wavelength for various data rate, look at: (International Communication Union) ITU-T Recommendations G.652, G.653, G.655, G.957, G.691, G.692 Tables 12-3, 12-4, 12-5 in the text book give you an idea about ITU recommendations for different photonic network configurations, standards, and interfaces.

SONET/SDH Ring 2-Fiber UPSR (Unidirectional Path Switched Ring) Generic two-fiber unidirectional network with counter-rotating protection path. Flow of primary and protection traffic from node 1 to node 3.

SONET/SDH Networks Add/Drop Multiplexer

WDM Network Dense WDM deployment of n wavelengths in an OC-192 trunk ring

Broadcast & Select Networks Star Bus Two physical architectures for a WDM LAN

Wavelength-Routed Networks (Wavelength reuse, wavelength conversion & optical switching)

Optical Cross-Connects (OXC)