Population inversion

Related lectures (22)

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Explores the efficiency of a four-level system in laser power calculation and output intensity.

Explores laser resonators, focusing on etalon structures and their role in laser amplification and beam control.

Explores rare earth doped fiber amplifiers, focusing on erbium operation at 1550 nm wavelength and the factors influencing gain spectrum.

Explores semiconductor laser physics, heterostructure design, and short pulse laser generation techniques.

Explores laser amplification through stimulated emission and the generation of short pulses using mode-locking techniques.

Explores light-matter interactions, laser history, and quantum theory development.

Explains semiconductor laser operation, pn junction formation, and laser efficiency.

Explores laser principles, types, and hazards, focusing on eye and skin safety measures.

Delves into semiconductor laser rate equations, steady state solutions, dynamic behavior, and applications in optical communications.

Explores laser diodes' relaxation oscillations and their role in laser modulation, including random intensity noise effects and practical examples.