Laser Systems: Rate Equations

This lecture covers the rate equations in laser systems, including the output intensity, gain saturation, and various gas lasers. It also discusses low and high power semiconductor lasers, beam quality, beam combiners, and applications. The instructor explains the theory and applications of laser beam steering, optical fibers, fiber lasers, ultrafast lasers, and non-linear frequency conversion. The lecture concludes with a review of resonator modes, spectral gain curves, and how to achieve population inversion in laser systems.