Physics of linear and nonlinear optical waveguides free videos and free material uploaded by IIT Kharagpur Staff .
Week 1:Linear and nonlinear optical waveguides & Brief history, Maxwell’s equation, Plane wave, Wave equation, Snell’s Law, Total Internal Reflection, Concept of core and cladding
Week 2:Numerical Aperture (NA), V-parameter, Cut off wavelength, Ray propagation in optical fibers, Meridonial rays, Skew ray, Concept of discrete ray propagation inside waveguides
Week 3:Waveguide characteristics: Loss mechanism, Modal dispersion, Ray Equation, Ray path for step-index waveguide
Week 4:Ray equation continue: Ray path for triangular-index waveguide, Ray path for parabolic index waveguide, Transit Time
Week 5:Material Dispersion, Group delay, Pulse broadening, Concept of zero dispersion, Birefringence waveguides
Week 6:Modes: TE & TM Modes, Modes in slab waveguide, Symmetric and anti-symmetric mode, Calculation of propagation constantWeek 7:Modes: Step index optical fibers, Bassel function, Recursion relation, LPlm modes
Week 8:Optical waveguide components: Directional coupler, Optical switching, Power coupler, Wavelength Division Multiplexing (WDM), Couple Mode Theory
Week 9:Fiber Bragg Grating (FBG), Bragg wavelength, Reflectivity calculation, Linear waveguide array
Week 10:Nonlinear Waveguides, Kerr nonlinearity, EM wave propagation under Kerr nonlinearity
Week 11:Nonlinear Susceptibility, Second Harmonic Generation (SHG), Third Harmonic Generation (THG), Phase Matching
Week 12:Self Phase Modulation (SPM), Nonlinear absorption, Optical Soliton, Supercontinuum Generation
Optical waveguide is a physical structure that guides electromagnetic waves and it is the most important component of integrated optical circuits. This course is intended to describe the theoretical basis of optical waveguides. In this course we learn the principal of light guidance by understanding the light-matter interaction in linear and nonlinear regime. We will also discuss different optical components based on waveguides that are used extensively in communication and sensing. This course is mostly self-contained with very basic prerequisites like knowledge of elementary algebra and calculus. The course is prepared for the senior graduate and M.Sc. students having a prior knowledge of electromagnetic theory. The course is also useful to the junior PhD students and M-Tech students whose research interest is related to Photonics. The exam of this course will be based on multiple choice questions and each week the descriptive type practice-assignments will be given to the students as home work. INTENDED AUDIENCE : 3rd year B. Sc Physics , M. Sc Physics , M-Tech (Applied PREREQUISITES : Basic calculus, Algebra, Basic complex numbers, Basic concept of electrodynamicsINDUSTRIES SUPPORT : None
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