Classical theory of fluctuations and coherence.

Intensity fluctuations due to collisional dephasing and Doppler shift.

First order correlation - Mach-Zehnder interferometer.

Second order correlation - Hanbury Brown - Twiss interferometer.

Superposition of noice, modulated light.

Quantum theory of fluctuations and coherence. Correlation of the first and second order.

Correlations of single mode light. Quadrature operators, correlation for pure states: states with a sharp number of photons, squeezed vacuum and squeezed coherent state.

Chaotic light. Density matrix in normal and anti-normal Glauber-Sudarshan representation.

Beam splitting. Multi-mode light. Continuous frequency representation, time representation, wavepacket with sharp number of photons, coherent wavepacket. Two-photon states. Measurement of electric fields.

Dicke collective states of atoms in gas, superradiance.

Einstein-Podolsky-Rosen paradox. Entanglement. Quantum cryptography and teleportation.

Introduction into the theory of coherence and the statistical properties of light.