Light wave System Components
Key elements of optical fiber systems, Optical fibers as a communication channel :
Optical fiber modes and configurations , Mode theory for circular waveguides,
Single-mode fibers, Graded-index fiber structure, Signal degradation in optical
fibers.Optical sources : Basic concepts and characteristics of LEDs and LASERs.
Photodetectors : Basic concepts, Common photodetectors.
System architectures, Point-to-Point links : System considerations, Design guidelines :
Optical power budget, Rise time budget, Long-Haul systems.
Overview of WDM, WDM components : 2 x 2 fiber coupler, Optical isolators and
circulators, Multiplexers and de-multiplexers, Fiber bragg grating, FBG applications for
multiplexing and De-multiplexing function, Diffraction gratings, Overview of optical
amplifiers : SOA, EDFA and RFA in brief.
Orbital Mechanics and Launchers
History of satellite communication, Orbital mechanics, Look angle determination,
Orbital perturbations, Orbital determination, Launchers and launch vehicles, Orbital
effects in communication system performance.
Satellite subsystems, Attitude and control systems (AOCS), Telemetry, Tracking,
Command and monitoring, Power systems, Communication subsystems, Satellite
antennas, Equipment Reliability and space qualification.
Satellite Communication Link Design
Introduction, Basic transmission theory, System noise temperature and G/T ratio,
Design of downlinks, Satellite systems using Small earth stations, Uplink design, Design
of specified C/N : Combining C/N and C/I values in satellite links, System design