Course Details
Subject {L-T-P / C} : EC6311 : Optical Instrumentation { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Dr. Saptarshi Chatterjee
Syllabus
MODULE 1: 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, Signal dispersion in fibers. (8 Hours)
MODULE 2: OPTICAL SOURCES AND : LEDs, Lasers, Principle of emission, Modes of resonant cavity, Q-switching, Mode locking, Gas, solid state, semiconductor and liquid lasers. (8 Hours)
MODULE 3: PHOTODETECTORS: Photo detector noise, Detector response time, Avalanche multiplication noise, PIN diodes. (6 Hours)
MODULE 4: 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. (8 Hours)
MODULE 5: FIBER OPTIC SENSORS: Intensity modulated sensors, Phase modulated sensors, Frequency modulated sensors, Wavelength modulated sensors, Polarisation modulated sensors, Scattering loss modulated sensors. (10 Hours)
Course Objectives
- To familiarize with optical fiber and measurement of different physical variables using it.
- To impart knowledge to students on the principles of optical instrumentation, their working, and applications in different fields.
- To provide an understanding of the different optical instruments and their functions, and how they are used in various fields, such as telecommunications, navigation, defense, and medical imaging.
- To learn to design and analyze optical devices and systems.
Course Outcomes
After the completion of the course, the students will be able to: <br /> <br />CO1: Understand the fundamental principles of optical instrumentation sources, detectors and coupling. <br />CO2: Analyze and design different types of optical instruments and systems. <br />CO3: Explain different optical components such as lenses, filters, and gratings, their functions and applications. <br />CO4: Understand the working of different kinds of optical detectors and sensors for the measurement of different variables like displacement, force, strain, vibration, temperature, pressure etc. <br />CO5: Analyze the performance of optical instruments using the appropriate techniques.
Essential Reading
- G. Keiser, Optical Fiber Communications, McGraw Hill International Edition, 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