The M1206-P110L-0.5 from ISOMET is a Acousto-Optic Modulator with Modulation Bandwidth 2 to 3.8 MHz, Diffraction Efficiency 40 to 85%, Rise Time 92 to 178 ns, Optical Wavelength 1550 nm, Optical Power 1.8 W. More details for M1206-P110L-0.5 can be seen below.