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.

page revision: 4, last edited: 29 Aug 2012 20:38