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Acousto-Optic Frequency Shift (AOFS)

AO-Frequency Shifters

An acousto-optic device that converts the frequency of input light to the frequency of an RF drive

After the laser beam passes through all the acousto-optic devices, the diffraction output beam will generate a frequency shift. Acousto-optic frequency shifters (AOFS) are compact devices specially designed for frequency shifts. Depending on the selected angle of incidence, the AOFS will shift the frequency up or down by the frequency of the applied RF signal, and two or more devices can be cascaded to achieve a sum or difference frequency combination. SIMTRUM offers AOFS products that adopt specially designed acoustic absorber angles to minimize sound reflection and improve the efficiency of AOFS.


In addition to the conventional TEO2-based products, SIMTRUM’s AOFS also offers a variety of products, including UVFS and Ge single crystals, which can be used individually or in a cascade to achieve a 15-250 MHz frequency shift as required.





Principle of Operation


Applications 

Laser heterodyne interference

Laser Doppler velocity measurement

Doppler vibration measurement (LDV)









Product specifications and Brochures

Product Brochure Link:  

 

General Specifications
Interaction MaterialTellurium Dioxide
Acoustic ModeShear
Operating Wavelength633 / 1064 nm
PolarizationIncident Beam: Linear, horizontal to base
1st Order Beam: Linear, vertical to base
0 Order Beam: Linear, horizontal to base
Transmission> 95% ~ 97%
Active Aperture1.0 / 3.0 mm
Center Frequency (Fc)20 ~ 115 MHz
RF Bandwidth (RB)5 ~ 15 MHz
Diffraction Efficiency @RB> 80%
RF Power< 1 ~ 2 W (Max)
Input Impedance50Ω Nominal
VSWR @Fc< 2.5:1 / < 3:1
RF ConnectorSMA-F
CoolingConduction-cooled
Shell MaterialAluminum alloy 6063

Ordering Information



Product CodeWavelengthActive ApertureCenter FrequencyDiffraction EfficiencyRF Power (Max)Optical MaterialCooling
STFS1001-TS020-030-633633 nm3.0 mm20 MHz/> 80 %Tellurium dioxideConduction-cooled
STFS1002-TS042-030-633633 nm3.0 mm42 MHz/> 80 %Tellurium dioxideConduction-cooled
STFS1003-TL100-030-633633 nm3.0 mm100 MHz/> 80 %Tellurium dioxideConduction-cooled
STFS1004-TL115-030-633633 nm3.0 mm115 MHz/> 80 %Tellurium dioxideConduction-cooled
STFS1005-TS042-030-633633 nm3.0 mm42 MHz/> 80 %Tellurium dioxideConduction-cooled
STFS1006-TS020-030-633633 nm3.0 mm20 MHz/> 80 %Tellurium dioxideConduction-cooled
STFS2001-TS042-020-030-633633 nm3.0 mm42 MHz &
    20 MHz
/> 80 %Tellurium dioxideConduction-cooled
STFS1008-TS070_5-010-10641064 nm1.0 mm73 MHz5 MHz> 80 %Tellurium dioxideConduction-cooled
STFS1007-TS073_15-010-10641064 nm1.0 mm73 MHz15 MHz> 80 %Tellurium dioxideConduction-cooled



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Search Reset
Compare Model Drawings & Specs Availability Reference Price
(USD)
STFS1001-TS020-030-633
Acousto-Optic Frequency Shift (AOFS), wavelength 633nm, active aperture 3.0mm, center frequency 20MHz, RF power >80% (2W max), Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFS1002-TS042-030-633
Acousto-Optic Frequency Shift (AOFS), wavelength 633nm, active aperture 3.0mm, center frequency 42MHz, RF power >80% (2W max), Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFS1003-TL100-030-633
Acousto-Optic Frequency Shift (AOFS), wavelength 633nm, active aperture 3.0mm, center frequency 100MHz, RF power >80%, Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFS1004-TL115-030-633
Acousto-Optic Frequency Shift (AOFS), wavelength 633nm, active aperture 3.0mm, center frequency 115MHz, RF power >80%, Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFS1005-TS042-030-633
Acousto-Optic Frequency Shift (AOFS), wavelength 633nm, active aperture 3.0mm, center frequency 42MHz, RF power >80% (<1W), Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFS1006-TS020-030-633
Acousto-Optic Frequency Shift (AOFS), wavelength 633nm, active aperture 3.0mm, center frequency 20MHz, RF power >80% (<1W), Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFS2001-TS042-020-030-633
Acousto-Optic Frequency Shift (AOFS), wavelength 633nm, active aperture 3.0mm, center frequency 40MHz & 20MHz, RF power >80% , Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFS1008-TS070_5-010-1064
Acousto-Optic Frequency Shift (AOFS), wavelength 1064nm, active aperture 1.0mm, center frequency 73MHz, diffraction efficiency 5MHz, RF power >80%, Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote
STFS1007-TS073_15-010-1064
Acousto-Optic Frequency Shift (AOFS), wavelength 1064nm, active aperture 1.0mm, center frequency 73MHz, diffraction efficiency 15MHz, RF power >80% , Tellurium dioxide, conduction-cooled, provide AOM-matched RF driver
4-6 Weeks Request for quote

STFS1007-TS073_15-010-1064 - Parameter

STFS1008-TS070_5-010-1064  - Parameter

STFS2001-TS042-020-030-633 - Parameter

STFS1006-TS020-030-633 - Parameter

STFS1005-TS042-030-633 - Parameter

STFS1004-TL115-030-633 - Parameter

STFS1003-TL100-030-633 - Parameter

STFS1002-TS042-030-633 - Parameter

STFS1001-TS020-030-633 - Parameter

STFS1007-TS073_15-010-1064 - Download

STFS1008-TS070_5-010-1064  - Download

STFS2001-TS042-020-030-633 - Download

STFS1006-TS020-030-633 - Download

STFS1005-TS042-030-633 - Download

STFS1004-TL115-030-633 - Download

STFS1003-TL100-030-633 - Download

STFS1002-TS042-030-633 - Download

STFS1001-TS020-030-633 - Download

Accessories

Compare Model Drawings & Specs Availability Reference Price
(USD)