LEDs, lasers, photodetectors and optoelectronic systems
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Unit 1
Waveguide and Optical Fiber Dielectric Slab Waveguide (Modes in symmetric slab waveguide, Mode condition, TE & TM polarization, Higher Order modes, Mode Pattern, Modes in Asymmetric slab waveguide), Description of Modes (Types of modes, Guided, Radiation and Leaky modes on ω-β plane, Parameters of single-mode and multi-mode fibers), Multipath dispersion in Step-index and Graded-index fiber, Material dispersion and Pulse distortion, Solitons, Information rate, Signal Degradation (Attenuation loss, Absorption, Rayleigh Scattering, Non-linear Scattering in Fibers), Loss mechanism in Fiber (Losses - Insertion, Return, Intrinsic, Reflection, etc.)
Unit 2
Optical Sources - I (Light Emitting Diode) Light Emitting Diode: Power & Efficiency; LED structures: Planar LED, Dome LED, Burrus-type LED, Surface emitting LED, Edge emitting LED, Super-luminescent LED, Resonant cavity and quantum dot LEDs; LED-Analog and Digital Transmissions, LED characteristics (optical output power and spectrum, modulation capability, Transient Response, Power-Bandwidth product).
Unit 3
Optical Sources - I (LASER) Introduction to LASERs, Black-body radiation, Einstein Coefficients for Absorption and Emission, Population Inversion, Laser Oscillation & its threshold condition, Direct &Indirect bandgap semiconductors, Semiconductor materials for optical sources, Semiconductor Injection Laser: Structures & characteristics, Modulation of Laser diodes, Temperature effects, Noise in Laser (Modal noise, Mode-partition noise, and Reflectionnoise), Non-semiconductor Lasers (Nd-YAG Laser & Glass fiber Lasers).
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Unit 4
Optical Detectors Optical detection theory, Quantum efficiency &Responsivity, Photo detectors without internal gain (p-n photodiode, PIN photodiode), Photo detectors with internal gain (Avalanche photodiode, Silicon reach through avalanche photodiodes, Germanium avalanche photodiodes, III-V alloy avalanche photodiodes), Photo-detector noise (noise source, Signal-to-Noise ratio), Detector Response time, Avalanche Multiplication Noise, Temperature effect on Avalanche Gain.
Unit 5
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Which semester is Optoelectronics Devices and Systems taught in for ECE?
Optoelectronics Devices and Systems (MTEC052) is a semester 2 subject in the AKTU M.Tech Electronics & Communication Engineering (ECE) curriculum.
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Electro-Optic Devices Electro-Optic effects (Kerr, Pockels, and Faraday effects); Q-switching; Modulation of Laser output; Electo-Optic Modulators, Kerr Modulators; Magneto-Optic Devices; Electro-Optic amplitude modulation; Acousto-Optic effect and devices; Switching & logic devices.
Unit 6
Other Optical and Optoelectronic devices Overview of Optical sensors and its advantage over conventional sensors, Intensitymodulated optical fiber sensors, Interferometric optical fiber sensors; Optical fiber couplers, Directional couplers; Optical isolators, Wavelength Multiplexers & De-multiplexers, Mach-Zehnder interferometer, Optical A/D, and D/A converters, Semiconductor quantum well structures, Quantum wires and dots.
Unit 7
Optoelectronic Materials Growth and characterization of III-V and II-VI semiconductor materials required for optoelectronic devices for visible and IR range. Ternary and quaternary semiconductors.
As per the latest AKTU syllabus — cross-check electives with your college.