Tunable Filters 声光可调滤波器

An acousto-optic tunable filter is a pass-band transmission filter, which exploits the acousto-optic interaction inside an anisotropic medium. AO Tunable Filters are generally fabricated in Tellurium Dioxide, operating within the visible to near/mid infra-red. The AO Tunable Filter allows the user to select and transmit a single wavelength, or in some cases a selection of multiple discrete wavelengths from the incoming light. The centre of the pass-band may be selected simply by tuning the drive frequency. Typical applications include; Biomedical (confocal microscopy & hyperspectral imaging), Scientific (spectroscopy) and industrial (process control).