The 1550nm Fiber-coupled AOM from BeamQ Lasers is a Acousto-Optic Modulator with Operating Temperature -20 to 60 Degree C, Storage Temperature -30 to 70 Degree C, Rise Time 30 ns, Optical Wavelength 1550 nm, RF Power 2.5 W. More details for 1550nm Fiber-coupled AOM can be seen below.