1. Chapter 8 Photonic Networks

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

3. 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

4. 3 Network Topologies Bus Topology Ring Topology Star Topology

5. Passive Linear Bus Topology Simplex linear bus with uniformly spaced stations

6. Liner bus versus star coupler

7. SONET/SDH STS-1 SONET frame with 51.84 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

8. SONET/SDH SONET levelElectrical levelLine rate (Mb/s)SDH equivalent OC-1STS-151.84- OC-3STS-3155.52STM-1 OC-12STS-12622.08STM-4 OC-24STS-241244.16STM-8 OC-48STS-482488.32STM-16 OC-96STS-964976.64STM-32 OC-12STS-1929953.28STM-64

9. Technical Information For more information about SONET/SDH standards and their range, receiver sensitivity, optical wavelength for various data rate, look at: http://www.itu.int (International Communication Union)http://www.itu.int 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.

10. 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.

11. SONET/SDH Networks Add/Drop Multiplexer

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

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

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

15. Optical Cross-Connects (OXC)