Experiments to Control Atom Number and Phase-Space Density in ...

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Figure 4.9: MOT master laser saturated absorption spectroscopy setup. Figure courtesy
of Gabriel Price.
Error Signal
a b c d e f
MOT Master Laser Frequency
Figure 4.10: Error signal of the MOT master laser. The marked transitions are due to the
following real and crossover transitions: (a) |F = 2〉 → |F ′ = 1〉, (b) |F = 2〉 → |F ′ =
1/2〉, (c) |F = 2〉 → |F ′ = 2〉, (d) |F = 2〉 → |F ′ = 2/3〉, (e) |F = 2〉 → |F ′ = 2/3〉, (f)
|F = 2〉 → |F ′ = 3〉
This setup locks the laser 280 MHz to the red of the |F = 2〉 → |F ′ = 3〉
transition. The 280 MHz detuning from the transition is due to a number of frequency
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