Module 8 : Laser- II
Lecture : Rate equations for Lasers
Recap
In this lecture you have learnt the following
Maser
Rate Equations for a Two Level System
Three Level Laser
Rate Equations for a Three Level System
Four Level Laser
Rate Equations for a Four Level System
Fabry - Perot Cavity and Laser Oscillation
Gain Saturation
Properties of Laser Beam
Spatial Coherence
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30