The M1396-G40L-7 from ISOMET is a single crystal Germanium Acousto-Optic Modulator (AOM) that operates at a wavelength from 2.5 to 11 µm. It delivers an optical power of up to 250 W with a center frequency of 40 MHz and a diffraction bandwidth of 20MHz. This AOM has an input impedance of 50 Ohms and an acoustic velocity of 5.5 mm/µs. It has a diffraction efficiency of over 85% and has an active aperture that measures 7 (H) x 14 (L) mm. This AOM has a Bragg angle of 33.9 - 38.6 mrad and a separation angle of 67.7 - 77.1 mrad. It has an insertion loss of less than 7 %, a reflectivity of less than 0.5% per surface, and an input VSWR of less than 1.70:1. This AOM has an input beam diameter of 3 - 7 mm and requires an RF power of 55 - 75 W. It is available in a module that measures 76 x 51.6 x 40.9 mm and is ideal for crystal growth, optical polishing, A/R coating, and vacuum bonding applications.