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Fiber lasers have emerged as a simple and cost-efficient alternative to commonly used Ti:Sapphire and OPO based laser systems in the field of two-photon microscopy offering
FemtoFiber ultra 920 key features
Clean-Pulse Technology for highest peak-power and image brightness AOM and GDD options available Quiet, fully air-cooled design reducing animal stress in
"I chose the FemtoFiber Ultra 920 due to its short pulse, compact design, and high power which is sufficient for two systems. So it's great, the performance is as promised, the laser is very stable
Scientific Article: E. Benkler et al., End-to-end topology for fiber comb based optical frequency transfer at the 10−21 level, Optics Express [27], 36886 (2019) Scientific Article: E. C. Cook
d) A Second, Stable Laser
A laser locked to one of the above mentioned references can serve as a reference itself. Difference frequencies are limited by the bandwidth of the employed photodetector,
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,
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