FREQUENCY SHIFTERS

Depending on which Bragg angle (relative to normal incidence) is utilized, any of the following units will either upshift or downshift the frequency of input light by the frequency of the RF signal applied. High diffraction efficiency at any frequency within the specified RF bandwidth can be maintained by Bragg optimization at the operating frequency selected. The high efficiency of these cells also makes cascading of two or more to achieve a wide range of upshift/downshift combinations practical. Absorber angles have been incorporated in all models to minimize acoustic reflections. For further information, please download our frequency shifter application note.