Course Title: Optoelectronics
Type of Course: Optional, Theory
Offered to: EEE
Pre-requisite Course(s): None
Optical properties in semiconductor: Direct and indirect band-gap materials, basic transitions in semiconductors, radiative and non-radiative recombination, optical absorption, photo-generated excess carriers, minority carrier life time, luminescence and quantum efficiency in radiation.
Properties of light: Particle and wave nature of light, polarization, interference, diffraction and blackbody radiation.
Light emitting diode (LED): Principles, materials for visible and infrared LED, internal and external efficiency, loss mechanism, structure and coupling to optical fibers. Double-Heterostructure (DH) LEDs, Characteristics, Surface and Edge emitting LEDs.
Stimulated emission and light amplification: Spontaneous and stimulated emission, Einstein relations, population inversion, absorption of radiation, optical feedback and threshold conditions.
Semiconductor Lasers: Population inversion in degenerate semiconductors, laser cavity, operating wavelength, threshold current density, power output, elementary laser diode characteristics, hetero-junction lasers, optical and electrical confinement. single frequency solid state lasers-distributed Bragg reflector (DBR), distributed feedback (DFB) laser.
Introduction to quantum well lasers. Introduction to quantum well lasers, Vertical Cavity Surface Emitting Lasers (VCSELs), optical laser amplifiers.
Photo-detectors: Photoconductors, junction photo-detectors, PIN detectors, avalanche photodiodes, hetero-junction photodiodes, Schottky photo-diodes and phototransistors. Noise in photo-detectors. PIN and APD. Photo-detector design issues.
Solar cells: Solar energy and spectrum, silicon and Schottkey solar cells.
Modulation of light: Phase and amplitude modulation, electro-optic effect, acousto-optic effect and magneto-optic devices. Introduction to integrated optics.
To provide a physics-based understanding of optical properties of materials and electrical and optical characteristics of devices such as, LED, LASER, Photodetectors, Photovoltaic Solar Cells, Electro-Optic Modulators.
To establish the theoretical foundation required for designing optoelectronic devices so that those can be applied for practical optoelectronic electronic applications
Fundamental understanding of concepts of the physics of solid-state devices and engineering electromagnetics
| CO No. | CO Statement | Corresponding PO(s)* | Domains and Taxonomy level(s)** | Delivery Method(s) and Activity(-ies) | Assessment Tool(s) |
|---|---|---|---|---|---|
| 1 | apply the physics-based knowledge to solve problems relevant the operation of optoelectronic devices | PO(a) | C3 | Lectures, Discussions | Assignment, Class test, Final exam |
| 2 | analyse the operation of Optoelectronic devices based on the underlying physics | PO(b) | C4 | Lectures, Discussions | Assignment, Class test, Final exam |
| 3 | design Optoelectronic devices such that specified performance characteristics are attained | PO(c) | C6 | Lectures, Discussions | Assignment, Class test, Final exam |
| 4 | present designed optoelectronic devices/systems | PO(j) | A3 | Interactive discussions | Assignment and Presentation |
Cognitive Domain Taxonomy Levels: C1 – Knowledge, C2 – Comprehension, C3 – Application, C4 – Analysis, C5 – Synthesis, C6 – Evaluation, Affective Domain Taxonomy Levels: A1: Receive; A2: Respond; A3: Value (demonstrate); A4: Organize; A5: Characterize; Psychomotor Domain Taxonomy Levels: P1: Perception; P2: Set; P3: Guided Response; P4: Mechanism; P5: Complex Overt Response; P6: Adaptation; P7: Organization
Program Outcomes (PO): PO(a) Engineering Knowledge, PO(b) Problem Analysis, PO(c) Design/development Solution, PO(d) Investigation,
PO(e) Modern tool usage, PO(f) The Engineer and Society, PO(g) Environment and sustainability, PO(h) Ethics, PO(i) Individual work and team work,
PO(j). Communication, PO(k) Project management and finance, PO(l) Life-long Learning
* For details of program outcome (PO) statements, please see the departmental website or course curriculum
| K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | CP1 | CP2 | CP3 | CP4 | CP5 | CP6 | CP7 | CA1 | CA2 | CA3 | CA4 | CA5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| √ | √ | √ | √ | √ | √ | √ | √ | √ |
| Week | Lectures | Topic |
|---|---|---|
| 1 | 1-3 | Optical properties in semiconductor: Direct and indirect band-gap materials, basic transitions in semiconductors, radiative and non-radiative recombination. |
| 2 | 4-6 | Optical properties in semiconductor: Optical absorption, photo-generated excess carriers, minority carrier life time, luminescence and quantum efficiency in radiation. |
| 3 | 7-9 | Carrier transport processes and excess carriers: Drift and diffusion, generation and recombination of excess carriers, built-in-field, recombination-generation SRH formula |
| 4 | 10-12 | Light emitting diode (LED): Principles, materials for visible and infrared LED, internal and external efficiency. |
| 5 | 13-15 | Light emitting diode (LED): Loss mechanism, structure and coupling to optical fibers. |
| 6 | 16-18 | Light emitting diode (LED): Double-Heterostructure (DH) LEDs, Characteristics, Surface and Edge emitting LEDs. |
| 7 | 19-21 | Stimulated emission and light amplification: Spontaneous and stimulated emission, Einstein relations, population inversion, absorption of radiation, optical feedback and threshold conditions. |
| 8 | 20-24 | Semiconductor Lasers: Population inversion in degenerate semiconductors. |
| 9 | 25-27 | Semiconductor Lasers: Laser cavity, operating wavelength, threshold current density, power output, elementary laser diode characteristics. |
| 10 | 28-30 | Semiconductor Lasers: Hetero-junction lasers, optical and electrical confinement. single frequency solid state lasers-distributed Bragg reflector (DBR), distributed feedback (DFB) laser. |
| 11 | 31-33 | Photo-detectors: Photoconductors, junction photo-detectors, PIN detectors, avalanche photodiodes, hetero-junction photodiodes, Schottky photo-diodes and phototransistors. Noise in photo-detectors. PIN and APD. Photo-detector design issues. |
| 12 | 34-36 | Solar cells: Solar energy and spectrum, silicon and Schottkey solar cells. |
| 13 | 37-39 | Modulation of light: Phase and amplitude modulation, electro-optic effect, acousto-optic effect and magneto-optic devices. Introduction to integrated optics. |
Class participation will be judged by in-class evaluation; attendance will be recorded in every class.
Continuous assessment will be done in the form of quizzes, assignments, in-class evaluations.
Final Examination: A comprehensive term final examination will be held at the end of the Term following the guideline of academic Council.
Class Participation 10%
Continuous Assessment 20%
Final Examination 70%
Total 100%
Optoelectronics and Photonics: Principles and Practices by Safa Kasap (3rd edition)
Reference Textbooks and relevant resources
Semiconductor Optoelectronic Devices by Pallab Bhattacharya
Physics of Semiconductor Devices by Sze & Ng, Wiley (3rd edition)
Optoelectronics, an introduction by Wilson & Hawkes, PHI (3rd edition)
Besides going through relevant topics of the textbook, it is strongly advised that the students follow the class Lectures and discussions regularly for a thorough understanding of the topics.