G H Aom

Two Gooch and Housego AOMs are currently used to diffract out two beams from the Nufern in order to form the crossed dipole trap.

Using a beam size of $2\omega_o \approx$1000$\mu m$, typical diffraction efficiencies range from 80-90%. The AOMs have been used with beam powers of up to 40W, with no effect on the diffraction efficiency:


If these AOMs are turned on quickly by switching the RF power, they take around $100\mu s$ to reach reach full diffraction efficiency.

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