The text outlines how utilizing additional energy levels enables the creation of a sustainable population inversion, allowing for continuous-wave (CW) operation. 4. The Optical Cavity (Resonator)
in a random direction with a random phase. This process generates ordinary, incoherent light. Stimulated Emission laser fundamentals silfvast pdf exclusive
: How light is amplified as it passes through the gain medium. The text outlines how utilizing additional energy levels
The random emission of a photon as an atom decays to a lower energy state. laser fundamentals silfvast pdf exclusive