Due to a Doppler shift, the diffracted beam of the Acousto-Optic modulator and frequency shifter is shifted in frequency (wavelength) by the acoustic beam. If the incident acoustic wave is introduced in the direction of the incident optical wave, the laser shifts toward the higher side.

If the incident acoustic wave is introduced in the opposite direction of the incident optical wave, the laser shifts toward the lower frequency side.

The A-O frequency shifters are powered by precision, fixed frequency, R.F. synthesized drivers. All are quartz crystal controlled and are available in laboratory models including a built-in power supply (110VAC or 220VAC) or in a flange mounted, aluminum, O.E.M. enclosure. The O.E.M. models require only +24 VDC for operation.

For more detailed information, please check check Fiber Pigtailed Acousto-Optic Frequency Shifters PDF file and find out specifications and drivers information.

If you are interested in other fiber pigtailed devices, please check Fiber-Optic Devices main page.