Video includes a demonstration of the use of a confocal cavity for the spectral analysis of single-frequency laser and multifrequency laser.

1. Overview of Lasers and Optics
2. Linear polarizer
3. Polarization rotation using polarizers
4. Quarter-wave plate
5. Half-wave plate
6. Optical isolator
7. Scattered light in a dielectric
8. Reflection at the air-glass boundary
9. Reflection at the glass-air boundary
10. Phase shifts in total internal reflection
11. Two-beam interference — collimated beams
12. Two-beam Interference: Diverging Beams
13. Destructive Interference: Where does the light go?
14. Fringe Contrast: Vibrations
15. Fringe Contrast: Intensity Ratio
16. Fringe Contrast: Polarization Difference
17. Fringe Contrast: Path Difference
18. Coherence Length and Source Spectrum
19. Plane Mirror Cavity: Collimated Beams
20. Plane Mirror Cavity: Diverging Beams
21. Curved Mirror Cavity: Radial Modes
22. Optical Spectrum Analyzer
23. Fraunhofer Diffraction: Adjustable Slit
24. Fraunhofer Diffraction: Two Slits
25. Fraunhofer Diffraction: Multiple Slits
26. Optics: Fraunhofer diffraction - thin wires
27. Optics: Fraunhofer diffraction - rectangular aperture
28. Optics: Fraunhofer diffraction - circular apertures
29. Optics: Fraunhofer diffraction - crossed multiple slits
30. Optics: Fresnel diffraction - adjustable slit
31. Optics: Fresnel diffraction - circular apertures
32. Optics: Single mode fiber
33. Optics: Multi-mode fiber
34. Optics: Polarization in a single mode fiber
35. Laser fundamentals I: Simple laser
36. Laser fundamentals I: Light amplifier
37. Laser fundamentals I: Polarization of laser light
38. Laser fundamentals I: Spectrum of laser light
39. Laser fundamentals I: Light inside and light outside laser
40. Laser fundamentals II: Optics of laser beams
41. Laser fundamentals II: Laser transverse modes
42. Laser fundamentals II: Laser linewidth
43. Laser fundamentals III: Reflection back into laser
44. Laser fundamentals III: High power argon laser
45. Laser fundamentals III: Multi-wavelength argon laser
46. Laser fundamentals III: Single-frequency argon laser
47. Laser fundamentals III: Tunable dye laser
48. Laser fundamentals III: Dye laser excitation of sodium
49. Laser fundamentals III: Dye laser induced fluorescence in iodine