## ENEE496 Lasers and Electro-Optics Devices

*Course Description*: This class provides an introduction to lasers and electro-optics devices. In particular, it gives an introduction to propagation of light through common optical components (i.e. lenses, mirrors, lenslike media) using a matrix formalism. The properties of Gaussian beams are then discussed. Then, stability of beams through optical resonators and the evaluation of resonance frequencies and transmission characteristics of resonators are presented. The principles of interaction of radiation and atomic systems are presented, including the classical electron model, dispersion and complex index of refraction, induced transitions and the Einstein A and B coefficients, rate equations, homogeneous and inhomogeneous transitions, gain, saturation, and amplification. The theory of laser oscillation is then presented with a discussion of 3 and 4-level lasers, oscillation frequency, power and output coupling, and Q-switching and mode-locking of lasers. Selected modern optoelectronic devices like detectors and modulators are briefly discussed. Different laser systems and applications are covered in a 15-20 pages scholarly papers by the students.*Prerequisite(s)*:None*Corequisite(s)*: ENEE 381*Course Objectives*:

- Understand and describe light propagation through simple optical system
- Understand the properties of optical resonators
- Understand interaction of radiation and atomic systems
- Get familiar with theory of laser oscillation
- Acquire knowledge of operation principles and applications of different laser systems

*Topics Covered*:

- Rays and optical beams
- Optical resonators
- Interaction of radiation and atomic systems
- Theory of laser oscillation
- Common lasers and optical amplifiers
- Simple optoelectronic devices