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Acousto-Optic Tunable Filter (AOTF)

Acousto-optic Tunable Filters

A device used to rapidly and dynamically select specific wavelengths from a wideband laser

Acousto-optic tunable filter (AOTF) is a kind of solid-state, electronically addressed, and random-access optical passband filter. It can be used to quickly and dynamically select specific wavelengths from wideband or multiline sources. Diffraction occurs when specific matching conditions are met between acoustic beams and beams. Thus, it becomes possible to electronically control filter parameters such as wavelength, modulation depth, and even bandwidth to provide fast (usually US), dynamic, random access optical filtering.


According to the existing material characteristics, SIMTRUM offers AOTF products based on TeO2 shear wave acoustic mode. The wavelength range covers 350-2500 nm. Optimum performance is achieved in each wavelength range and meets most applications: resolution as low as 1 nm, FOV Angle up to 20 degrees, and aperture up to 10 mm. In most cases, the filtering output of AOTF is collinear. After the randomly deflected input light passes through AOTF, two horizontally polarized or vertically polarized lights with different deflection directions will be obtained, which can be easily used by users and fiber coupling can be carried out according to needs.


For best performance, we recommend matched RF drivers, including digital frequency synthesizer (DFS) driver technology and random-access wavelength control.




Applications 

Quantum electronics

Spectroscopy

Spectral polarization

Fluorescence spectroscopy




- HYPER spectral imaging

- Laser wavelength tuning

- Wavelength selection

- Optical communication




Principle of Operation




Product specifications and Brochures

Product Brochure Link:  

 

General Specifications
Interaction MaterialTellurium Dioxide
Acoustic ModeShear / Off Axis
Operating Wavelength400 ~ 1100 nm
PolarizationIncident Beam: Linear, horizontal to base
Diffraction Beam: Linear, vertical to base
 0 Order Beam: Linear, horizontal to base
Transmission> 94% ~ 95%
Active Aperture2.0 ~ 2.5 mm
Resolution≤ 5 ~ 10 nm
Center Frequency (Fc)45 ~ 200 MHz
Diffraction Efficiency @RB> 70%
RF Power2 ~ 3 W (Max)
Input Impedance50Ω Nominal
VSWR @Fc< 3.5:1
RF ConnectorSMA-F
CoolingConduction-cooled
Shell MaterialAluminum alloy 6063


Ordering Information


Product CodeWavelengthActive ApertureResolutionDiffraction EfficiencyOptical Material
STTF0001-TS020-640_1100640-1100 nm2.0 mm≤ 10 nm> 70%Tellurium dioxide
STTF0002-TS020-400_700400-700 nm2.0 mm≤ 5 nm> 70%Tellurium dioxide
STTF2001-TS025-400_1000400-1000 nm2.5 mm≤ 10 nm> 40%Tellurium dioxide



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Compare Model Drawings & Specs Availability Reference Price
(USD)
STTF0001-TS020-640_1100
Acousto-Optic Tunable Filter (AOTF), wavelength 640-1100nm, active aperture 2.0mm, resolution ≤10nm, diffraction efficiency >70%, optical material Tellurium dioxide, provide AOM-matched RF driver
4-6 Weeks Request for quote
STTF0002-TS020-400_700
Acousto-Optic Tunable Filter (AOTF), wavelength 400-700nm, active aperture 2.0mm, resolution ≤5nm, diffraction efficiency >70%, optical material Tellurium dioxide, provide AOM-matched RF driver
4-6 Weeks Request for quote
STTF2001-TS025-400_1000
Acousto-Optic Tunable Filter (AOTF), wavelength 400-1000nm, active aperture 2.5mm, resolution ≤10nm, diffraction efficiency >40%, optical material Tellurium dioxide, provide AOM-matched RF driver
4-6 Weeks Request for quote

STTF2001-TS025-400_1000 - Parameter

STTF0002-TS020-400_700  - Parameter

STTF0001-TS020-640_1100 - Parameter

STTF2001-TS025-400_1000 - Download

STTF0002-TS020-400_700  - Download

STTF0001-TS020-640_1100 - Download

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Compare Model Drawings & Specs Availability Reference Price
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