Course Details
Subject {L-T-P / C} : EC4306 : Optical Instrumentation { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Umesh Chandra Pati
Syllabus
OPTICAL FIBRES: STRUCTURES WAVE GUIDING AND FABRICATION: Optical laws and definitions, Optical fiber modes and configurations, Mode theory for circular wave guides, Single-mode fibers, Grade index fiber structure ATTENUATION AND DISPERSION: Attenuation, Signal dispersion in fibers OPTICAL SOURCES: LEDs, Lasers, Principle of emission, Modes of resonant cavity, Q-switching, Mode locking, Gas, solid state, semiconductor and liquid lasers POWER LAUNCHING AND COUPLING: Source to fiber power launching, Lensing schemes for coupling improvement, Fiber to fiber joints, LED coupling to single mode fibers, Fiber splicing, Optical fiber connectors PHOTODETECTORS: Photo detector noise, Detector response time, Avalanche multiplication noise, PIN diodes, APD FIBER OPTIC SENSORS: Intensity modulated sensors, Phase modulated sensors, Frequency modulated sensors, Wavelength modulated sensors, Polarisation modulated sensors, Scattering loss modulated sensors ADVANCED TOPICS.
Course Objectives
- A student will be familiar with different aspects of optical instrumentation.
Course Outcomes
A student can be able to understand fundamentals of optical fiber, sources, detectors and coupling. He will also be able to know about optical fiber based sensors for the measurement of different variables like displacement, force, strain, vibration, temperature, pressure etc.
Essential Reading
- G. Keiser, Optical Fiber Communications, McGraw Hill, 2017
- John M. Senior, Optical Fiber Communications: Principles and Practice, Pearson Education, 2014
Supplementary Reading
- J. Gowar, Optical Communication Systems, Prentice Hall of India,2015
- B. Culshaw, Optical Fiber Sensing and Signal Processing, Peter Peregrinus Ltd, 2014