The AOMO 3200-120 (99-48146-10) from Sintec Optronics is a Acousto-Optic Modulator with Modulation Bandwidth 26.5 to 52 MHz, Rise Time 13 to 23 ns, Optical Wavelength 442 to 488 nm, RF Power 0.53 to 0.65 W, Center Frequency 200 MHz. More details for AOMO 3200-120 (99-48146-10) can be seen below.