ISS Acousto-optic Tunable Filter (AOTF)

ISS Modules & Components

Overview of Acousto-optic Tunable Filter (AOTF)

The AOTF module is designed for selecting up to 8 independent laser wavelengths simultaneously from a supercontinuum laser source and setting the individual intensity of each wavelength. It is controlled by computer through USB connection. The blanking function is provided for the on/off RF modulation of the laser intensity by an external TTL clock up to 1 MHz; this utility enables many applications such as PLIM (Phosphorescence Lifetime Imaging), FRAP (Fluorescence Recovery After Photobleaching) and ALEX (Alternating-Laser Excitation). By default, the supercontinuum laser is split inside the AOTF unit into two beams-VIS and NIR-and only the VIS beam goes through the AO. The AOTF module features two outputs for VIS and NIR respectively-both can be configured as free space or fiber coupled. A filter (25 mm diameter circular) slot is available for each beam path to further clean up the VIS laser wavelength after the AO or to select a particular NIR laser wavelength.  

Compatible with Q2, and PL1.

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