Table of Contens

Objectives: This course aims to provide knowledge of the physical mechanisms involved in semiconductor optoelectronic devices (LEDS, diode lasers, photodetectors…). We will also discuss in details the operation of the devices and performance evaluation: factors of merit, outputs, limitation in frequency…

Outline (with number of hours per part)	Lect	PSS	LW
Introduction: State of the art of the industrial market (Optical telecommunication, lighting, etc.), quantum devices, future devices I - Operation principles of semiconductor light sources Band structure (revision) Reminder of linear optics Statistics and occupation functions (revision): vertical optical transitions, calculation of transition rates, absorption and Gain coefficient Semiconductor laser cavity LEDs and diodes laser technology: LEDs, Double Heterostructure (DH) Laser, oscillation threshold of lasers Spatial Characteristics of the laser beam Temperature sensitivity Spectral characteristics (DFB Laser…) Vertical Cavity Surface Emitting Laser (VCSEL) II - Quantum Well Lasers 2D semiconductor – light interaction Optical transition calculation Optical gain in quantum wells (comparison with bulk) Quantum well laser threshold Introduction to band structure engineering (strain/quantum confinement…) for optimization of laser devices III - New trends: Quantum cascade lasers, quantum dot lasers… IV - Semiconductor photodetectors Photodiode P-N, P-i-N, avalanche and quantum wells Photoconductors, phototransistors Frequency response Noise, detectivity	20	2.5