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Overview of TOPTICAs lock solutions   The table below shows a summary of lock solutions discussed in this series of application notes and of TOPTICA laser locking electronics that can be used to realize these locks. The first column…  
Frequency References - TOPTICA Solution   TOPTICA Solution The TOPTICA DFC CORE + is a frequency comb which is based on Difference Frequency Generation (DFG), i.e. the carrier-envelop offset is passively fixed to \(f_{CEO}=0\). It is…  
Frequency References - c) Frequency Comb   c) Frequency Comb Another way to stabilize a laser´s phase or frequency is to compare it to a stable light source. A tool which has been developed for exactly this purpose is the frequency comb. Its…  
PID Feedback Controllers   Most controllers are a combination of these three elements. However, there are several ways how to combine and physically implement these elements. Consequently, there is a large variety of…  
Atomic Spectroscopy Lock   The Doppler broadened transmission of a second probe beam which is sent through the gas cell without overlapping the pump beam can be used as a reference. Subtracting this reference from the actual…  
General Error-Signal-Generation Schemes - a) Side-of-fringe locking   a) Side-of-fringe locking Considering a spectral peak, e.g. obtained from the transmission through a spectroscopy cell or through an optical resonator, a straight forward way to obtain an error…  
customized   "TOPTICAs CARS solution is really one of our working horses in the lab! The fiber technology is compact, reliable and quiet. I can fully recommend the laser to every researcher working in the field…  
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