The AOM-402AF4 from IntraAction Corp. is a Acousto-Optic Modulator with Modulation Bandwidth 1.8 [email protected] mm / 2.7 [email protected] mm, Diffraction Efficiency 0.85, Rise Time 177 to 256 ns, Optical Wavelength 1064 nm, RF Power 5 W. More details for AOM-402AF4 can be seen below.