Description
Accurate, fast, adjustable wavelength selector
The Acousto-optic tunable filters (AOTF) are solid-state, electronically addressable, and random-access optical bandpass filters. Diffraction occurs when the acoustic beam and the light beam satisfy specific matching conditions. It can be used to quickly and dynamically select specific wavelengths from a wide spectrum.
Designed AOTF products based on TeO2 slow shear waves according to the existing material properties, achieving optimal performance in each wavelength range and meeting most applications: operating wavelength of 400-1450 nm, resolution as low as 3 nm, and effective aperture up to 10 mm. In most cases, AOTFs are designed with a non-collinear structure, and randomly polarized input light passing through the AOTF will diffract two orthogonal polarizations of ±1 order that match the specific frequency of the ultrasonic wave. Users can easily use it and can be fiber-coupled as needed.
To achieve the best fit performance, it is recommended to use our RF drivers, which include fixed-frequency and variable-frequency series.
Applications：
●Spectral polarization
●Hyperspectral imaging
●Wavelength selection
●Optical communication
●Laser wavelength tuning
| Model Number：CATF-w-a-mt-w-c-h | |||||||
| Wavelength (w) | Aperture (a) | Material(m) | Mode (t) | Sidelobe Suppression (s) | Wavelength
Resolution (f) |
RF
Connector (c) |
Housing (h) |
| 640-1100
(640-1100 nm) … |
010 (1 mm）
… |
CQ
TE |
C (Compressional)
… |
A (Yes)
B (No) |
10 (10 nm)
… |
AF (SMA-F)
… |
C60
… |
| Typical Specifications | ||||
| Wavelength | Aperture | Resolution | Diffraction efficiency | Input/output polarization |
| 450-650 nm | 2.5 mm | ≤3 nm | ≥80 % | vertical/horizontal |
| 450-650 nm | 8 mm | ≤10 nm | ≥75 % | horizontal/vertical |
| 640-1100 nm | 2 mm | ≤10 nm | ≥85 % | vertical/horizontal |
| 400-900 nm | 3 mm | ≤5 nm | ≥65 % | horizontal/vertical |
| 430-1450 nm | 2.5 mm | ≤15 nm | ≥50 % | horizontal/vertical |
