Laser amplifiers
1) Optical transitions
2) Optical absorption and amplification
3) Population inversion and optical gain
4) Laser amplifiers
5) Rare-earth ion-doped fiber amplifiers

Laser oscillators
6) Resonant optical cavities
7) Laser oscillation
8) Laser power
9) Pulsed lasers
10) Optical fiber lasers

Semiconductor basics

Semiconductor lasers and light-emitting diodes
11) Radiative recombination
12) Band-to-band optical transitions
13) Optical gain
14) Spontaneous emission
15) Junction structures
16) Lateral structures
17) Light-emitting diodes
18) Semiconductor optical amplifiers
19) Semiconductor lasers
20) Semiconductor laser characteristics