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Acousto-Optic Tunable Filters
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  • Acousto-Optic Tunable Filters

  • Acousto-optic tunable filters(AOTF) are used to pick and transmit a specific wavelength from a broadband or a multiline laser source efficiently.
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Product description:

Acousto-optic tunable filters(AOTF) are used to pick and transmit a specific wavelength from a broadband or a multiline laser source efficiently. The transmitted wavelength of the narrow passband changes as the RF driver frequency changes. Compared with other types of filters, the primary advantage of acousto-optic tunable filters is its fast tuning speed. Wavelength tuning can be accomplished in tens of microseconds.

CATECH's acousto-optic tunable filters are fabricated using high quality TeO2 crystals grown in-house. The products are suitable for a wide variety of wavelengths.

 

Applications:

●Laser  wavelength tuning              

●Wavelength selection            

●Laser-microscope  

●Laser imaging                    

●Spectroscopy

 

 

Schematic diagram of AOTF

Acousto-Optic Tunable Filters Model Number:CATF-w-r-a-ms-f-c-h

Wavelength

(w)

Range

(r)

Aperture

(a)

Material

(m) 

Sidelobe Suppression

(s)

Resolution Bandwidth 

(f)

RF

Connector

(c)

Housing

(h)

 

450~650 nm

640~1100 nm

200 nm

500 nm

...

015

(1.5 mm)

020

(2 mm)

025

(2.5 mm)

TE

(TeO2)

A

(有)

B

(无)

10 nm

AF

(SMA-F)

AM

(SMA-M)

...

B70

...

 

 

Typical Specifications

Frequency

Wavelength

Transmittance

Diffraction Efficiency

Bandwidth

VSWR

95 ~ 180 MHz

450 ~ 650 nm

≥ 97%

≥ 70% 

≤ 12 nm

< 3.5:1

48 ~ 86 MHz

 640 ~ 1100 nm

≥ 97%

≥ 70%

≤ 12 nm

< 3.5:1

 

 

Housing dimensions(mm):

 

B70

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