Introduction to Laser Physics is intended to be a ""user-friendly"" presentation on laser theory. The primary goal in developing this material was to make the mechanisms behind lasing accessible to as wide an audience as possible, ranging from those with no prior exposure to Quantum Physics, to those with some grasp of the subject. To that end, the material has been structured with the more basic concepts and analogous examples at the outset. These basics are then refined as the material progresses, which includes a brief overview of laser applications in fiber optics. More advanced...