The most straightforward way to generate an error signal is to send part of the laser light through the cavity and measure the transmission with a photodiode behind the cavity. Analogous to the…
With more than 15 years of experience in femtosecond fiber laser technology and fiber laser design, TOPTICA offers innovative and custom-tailored laser systems that enable cutting-edge research in…
The PD signal is a function of the phase difference between the laser light and the optical reference under consideration. This signal is only constant if the frequency difference between the laser…
TOPTICA solution
With the CoSy, TOPTICA offers a plug-and-play spectroscopy package which is based on Doppler free saturation spectroscopy. It includes the gas cell as a reference together with the…
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…
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…
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…