UNIT - I OPTICAL SYSTEM COMPONENTS Light Propagation in optical fibers - Loss & bandwidth, System limitations, Nonlinear effects; Solitons; Optical Network Components - Couplers, Isolators & Circulators, Multiplexers & Filters, Optical Amplifiers, Switches, Wavelength Converters. (Chapter - 1) UNIT - II OPTICAL NETWORK ARCHITECTURES Introduction to Optical Networks; SONET / SDH, Metropolitan-Area Networks, Layered Architecture; Broadcast and Select Networks - Topologies for Broadcast Networks, Media-Access Control Protocols, Wavelength Routing Architecture. (Chapter - 2) UNIT - III WAVELENGTH ROUTING NETWORKS The optical layer, Optical Network Nodes, Routing and wavelength assignment, Traffic Grooming in Optical Networks, Architectural variations- Linear Light wave networks, Logically Routed Networks. (Chapter - 3) UNIT - IV PACKET SWITCHING AND ACCESS NETWORKS Photonic Packet Switching - OTDM, Multiplexing and Demultiplexing, Synchronization, Broadcast OTDM networks, Switch-based networks, Contention Resolution Access Networks - Network Architecture overview, Optical Access Network Architectures and OTDM networks. (Chapter - 4) UNIT - V NETWORK DESIGN AND MANAGEMENT Transmission System Engineering - System model, Power penalty - transmitter, receiver, Optical amplifiers, crosstalk, dispersion, Wavelength stabilization, Overall design considerations, Control and Management - Network management functions, Configuration management, Performance management, Fault management, Optical safety, Service interface. (Chapter - 5)