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AO Deflectors

CASTECH's AODF uses TeO2 crystal as the acousto-optic medium. CASTECH promised the high quality of crystal due to the advanced growth and polishing process and it makes the deflectors exists the low insertion loss and high Damage Threshold*. In the meanwhile, we provide full scan angle diffraction efficiency and power flux consistency. CASTECH can customize the product of AODF according to customer needs.


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ProductIntroduction

  Acousto-optic deflectors (AODF) arebased on the deflection of light by a propagating acoustic wave in an opticalisotropic medium. Incident light is deflected in one or more directions byperiodic variations in the refractive index produced by the propagatingultrasound wave. AODF offers precise angular control of an optical beam usingRF drive frequency tuning.

    CASTECH's AODF uses TeO2 crystal as the acousto-optic medium. CASTECHpromised the high quality of crystal due to the advanced growth and polishingprocess and it makes the deflectors exists the low insertion loss and highDamage Threshold*. In the meanwhile, we provide full scanangle diffraction efficiency and power flux consistency. CASTECH can customizethe product of AODF according to customer needs.



Applications:

  ◆ Laser display

  ◆ Precision Machining


Specifications:


Material

TeO2

Wavelength  

1064  nm

Transmission(Single  pass)

97%

Damage Threshold*

1GW/cm²@1064nm,10ns,10Hz

Diffraction efficiency

Nom  70%

Polarization

Random

ClearAperture

0.5,1,1.5,2,…mm

Acoustic mode

Compressional

Operating  mode

Bragg

Diffraction  angle

18.5  mrad

RF  Frequency

73  MHz

RF  Bandwidth

6  MHz

RF  power rating(Maximum)

2  W

RF  connector

SMA

Rise  time

120  ns

Input  impedance

50 Ω

VSWR

1.2:1

Operating  temperature

10~40


*Customized (wavelength, dimension,material,etc.) are available.

*CASTECHprovides the Product specification for specific models, please contact ourcompany for more details.


Product number

Center frequency

(f)

 RF range

(r)

Aperture

(a)

Material

(m)

Mode

(t)

Wavelength

(w)

RF connector

(c)

Housing

(h)

CADF-f/r-a-mt-w-c-h

90  MHz...

/

≤2mm

TE

(TeO2)

S

(Shear)

1064  nm

SMA

A33


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