Design Features of a Tunable Source Based on an Acousto-Optical Tunable Filter

Tunable sources can be used in many industrial and scientific fields, such as printing industry, ophthalmology, spectral analysis, and as a color standard. Sources of this type can be implemented based on AOTF. In this case, they do not use mechanically moved components in the device, which makes it possible to simplify the design and minimize the dimensions of the system. A feature of devices with AOTF is the low efficiency of the luminous flux utilization. This factor leads, consequently, to the low brightness of the source. The paper considers the possibilities to increase the luminous efficiency of the system, as well as the features of the implementation of a compact tunable source design based on AOTF.