1064nm 80MHz Polarization-Maintaining Fiber Acousto-Optic Modulator (AOM) parameter material :TeO2 wavelength:1064nm Average optical power handling :  3W Peak (pulsed) optical power:  3kW Ultrasonic sound velocity : 4200m/s Insertion loss  :2dB Polarization Extinction Ratio：18dB Extinction ratio : 50dB Return loss: 40dB Rising edge time ：45ns frequency :80MHz Frequency shifting : /-80MHz Frequency stability: 80 /-0.1%MHz RF power :1.8W Voltage VSWR :1.2:1 Input impedance:  50Ω Device interface SMA Fiber type ：PM980 Fiber length： 1m Fiber optic interface： FC/APC Operating temperature ：-20~60℃ Storage temperature ：-30~70℃