Gaussian Optics, Optical Resonators and their Mode Structure (4); Atomic levels, Absorption, Spontaneous and Stimulated emission, Einstein coefficients (4); Rate Equations, Population Inversion, Gain media, 3 and 4 level lasers (6); CW & Pulsed Lasers, Q-Switching, mode-locking, Short pulses (6); Ar+, CO2, Nd:YAG, diode lasers, etc. (10); Metrology, Optical Communication, Materials Processing, Holography, Medical Applications (12).