a) Atomic or Molecular Transitions – Spectroscopy
For many applications, a good and simple way to stabilize a laser´s frequency is to compare it to an atomic or molecular transition. One advantage…
The concept of phase and frequency stabilization relies on the possibility to detect changes of the quantity that is wished to be stabilized. To do so this quantity has to be measured continuously,…
The application note “Error-Signal Generation” describes how to generate an electronic signal which indicates how much the laser phase or frequency has deviated from a set value. Different schemes…
There are many ways to lock a laser´s phase or frequency. They do, however, all follow the same basic principles based on a feedback loop, which is diagrammatically sketched in Figure 1. Each…