Fiber Coupled Double Pass Acousto-Optic Modulator — up to 200MHz

SKU: AOMD

The Optical Fiber-Coupled Double-Pass Acousto-Optic Modulator (AOM) Module is a compact, fully integrated solution for laser frequency shifting, optical switching, amplitude modulation, and modulation sideband generation in demanding applications such as quantum computing, laser cooling, atom trapping, ion trapping, precision spectroscopy, and quantum metrology. By routing the +1st-order diffracted beam through the AOM a second time, the module produces a total optical frequency shift equal to twice the applied RF frequency. The double-pass configuration inherently cancels beam angular deviation during RF frequency tuning, allowing wide-range laser frequency scanning while maintaining a fixed output beam direction and excellent fiber-coupling stability. The fiber-coupled architecture eliminates complex free-space alignment, providing robust, maintenance-free operation with stable optical input and output. The module supports arbitrary RF modulation waveforms and is available for customizable operating wavelengths from 400 nm to 1500 nm. To achieve the highest diffraction efficiency and lowest insertion loss, the module employs an optimized large-diameter collimated beam through the AOM crystal.