Fig. 4: Schematic diagram of the optical bench.
From: Cold atom microwave clock based on intracavity cooling in China space station
The cooling laser, after frequency stabilization via the saturated absorption spectra, is amplified by a tapered amplifier (TA) and then frequency-shifted by 5 AOMs according to the different needs of the apparatus, resulting in a total output of eight lasers with a total power greater than 240 mW. Of these, the repumping laser, after frequency stabilization and frequency shifting, is coupled into six other fibers.
