116 West, 23rd Street - Suite 500
New York, NY 10011 USA
Phone: 646 375 2452 - Fax: 866 978 2682
QUANTA TECH is a AA OPTO-ELECTRONIC Company
Acousto optic Radio Frequency Laser

Fixed and Variable
Frequency Shifters

A frequency shifter uses the shift inherent in the acousto-optic interaction to up- or down-shift a laser’s frequency. Two kinds of shifters can be distinguished: the fixed frequency shifter, and the variable frequency shifter. The frequency shift is directly equal to the RF frequency applied onto the transducer (we must not forget that the out put angle is also linked to the frequency : see deflectors).

Various techniques can be used to shift the laser beam, such as multiple travels inside the shifter to double or triple the frequency shift, or a combination of two frequency shifters to achieve low amount of shift (DC to KHz).

These devices can be used, for example, in optical heterodyning and interferometric applications, or in laser Doppler velocimetry for particle velocity analysis in sprays.

Modulator MT350
Deflector
 
Fixed Frequency Shifters
Model Material Wavelengt
nm		 Aperture
mmxmm		 Freq (Shift)
MHz		 Polarization Rise Time
ns		 Modul.BW
MHz (AM)		 Efficiency
% (@Fc)
MQ200-A1.5-244.266-B Fused silica 244-266

1.5 x 2

 200 Linear 60 8 85
MQ180-A0,3-244.266-B Fused silica 244-266

0.3 x 1

 180 Linear 12 40 85
MQ200-A1.5-266.300 Fused silica 266-300

1.5 x 2

 200 Linear 60 8 85
MQ180-A0.2-266.300 Fused silica 266-300

0.2 x 1

 180 Linear 10 48 85
MQ180-A0,2-UV Fused silica 325-425

0.2 x 1

 180 Linear 10 48 80
MQ110-A1-UV Fused silica 325-425

1 x 2

 110 Linear 15 32 85
MQ110-A3-UV Fused silica 325-425

3 x 3

 110 Linear 50 10 90
MQ240-A0.15-UV Fused silica 325-425

0.15 x 1

 240 Linear 6 80 70
MTS130-A3-400.442 TeO2 400-442

3 x 3

 130 Linear 1000 0 85
MQ180-A0,2-VIS Fused silica 440-650

0.2 x 1

 180 Linear 10 48 70
MT350-A0,2-VIS TeO2 450-700

0.2 x 1

 350 Linear 5 96 80
MT250-A0,5-VIS TeO2 450-700

0.5 x 2

 250 Linear 6 80 80
MT200-A0,5-VIS TeO2 450-700

0.5 x 2

 200 Linear 8 60 85
MT110-A1-VIS TeO2 450-700

1 x 2

 110 Linear 15 32 85
MT110-A1,5-VIS TeO2 450-700

1,5 x 2

 110 Linear 50 9 85
MT80-A1-VIS TeO2 450-700

1 x 2

 80 Linear 23 21 85
MT80-A1,5-VIS TeO2 450-700

1,5 x 2

 80 Linear 50 9 85
MTS110-A3-VIS TeO2 458-670

3 x 3

 110 Linear 1000 0 85
MTS40-A2,5-VIS TeO2 458-670

2,5 x 2,5

 40 Linear 1000 0 85
MTS40-A2,5-IR TeO2 780-900

2,5 x 2,5

 40 Linear 1000 0 85
MT110-A1,5-IR-Hk (Ti:sa) TeO2 690-1064

1,5 x 2

 110 Linear 50 9 80
MT350-A0,2-IR TeO2 700-1100

0.2 x 1

 350 Linear 5 96 80
MT250-A0,5-IR TeO2 700-1100

0.5 x 2

 250 Linear 6 80 80
MT200-A0,5-IR TeO2 700-1100

0.5 x 2

 200 Linear 8 60 85
MT110-A1-IR TeO2 700-1100

1 x 2

 110 Linear 15 32 85
MT110-A1,5-IR TeO2 700-1100

1,5 x 2

 110 Linear 50 9 85
MT80-A1-IR TeO2 700-1100

1 x 2

 80 Linear 23 21 85
MT80-A1,5-IR TeO2 700-1100

1,5 x 2

 80 Linear 50 9 85
MT200-A0,4-1064 TeO2 1000-1100

0,4 x 1

 200 Linear 8 60 80
MT200-A0,2-1064 TeO2 1000-1100

0,2 x 1

 200 Linear 8 60 80
MT110-A1-1064 TeO2 1000-1100

1 x 2

 110 Linear 15 32 85
MT80-A1-1064 TeO2 1000-1100

1 x 2

 80 Linear 23 21 85
MT80-A1,5-1064 TeO2 1000-1100

1,5 x 2

 80 Linear 50 9 85
MTS80-A3-1064Ac TeO2 1064

3 x 3

 80 Linear 500 1 85
MQ40-A3-L1064-W SiO2 1064

3 x 3

 40 Linear 120 4 80
MQ40-A3-S1064-W SiO2 1064

3 x 3

 40 Random 180 2 80
MGAS40-A1 Dopped Glass 1300-1600

1 x 2

 40 Random 50 10 85
MGAS80-A1 Dopped Glass 1300-1600

1 x 2

 80 Random 50 10 75
MGAS110-A1 Dopped Glass 1300-1600

1 x 2

 110 Random 25 20 75
MG40-A6-9300 germanium 9300

6 x 10

 40 Linear 120 4 75
MG40-A8-9300 germanium 9300

8 x 10

 40 Linear 120 4 75
MG40-A6-10600 germanium 10600

6 x 10

 40 Linear 120 4 75
MG40-A8-10600 germanium 10600

8 x 10

 40 Linear 120 4 75
 
Variable Frequency Shifters
Model Material Wavelength Aperture Freq (Shift)
MHz		 Polarization Resolution
TX∆F		 Efficiency
%@Fc		 Deflexion Angle
Range mrd
MQ110-B50A1-266.300 Fused Silica 266-300

1x2

 110+/-25 Linear 16 > 60 2.2@266nm
MQ110-B50A1-UV Fused Silica 325-425

1x2

 110+/-25 Linear 16 > 60 3@355nm
MT225-B50A0,5-400.44 TeO2 400-442

0.5 x 2

 225+/-25 Linear/random 23 > 80 5.4 @458nm
MT200-B100A0,5-VIS TeO2 450-700

0.5 x 2

 200+/-50 Linear/random 47 > 60 @633nm 12.6@532nm
MT110-B50A1-VIS TeO2 450-700

1 x 2

 110+/-25 Linear/random 23 > 60 @633nm 6.3@532nm
MT110-B50A1,5-VIS TeO2 450-700

1,5 x 2

 110+/-25 Linear/random 23 > 60 @633nm 6.3@532nm
MT80-B30A1-VIS TeO2 450-700

1 x 2

 80+/-15 Linear/random 14 > 65 3.8@532nm
MT80-B30A1,5-VIS TeO2 450-700

1,5 x 2

 80+/-15 Linear/random 14 > 65 3.8@532nm
MT225-B100A0,5-800 TeO2 750-850

0.5 x 2

 225+/-50 Linear/random 47 > 60 18.6 @785nm
MT200-B40A1-IR TeO2 700-1100

1 x 2

 200+/-20 Linear/random 19 > 70 @785nm 7.4 @800nm
MT350-B120A0,2-IR TeO2 700-1100

0.2 x 1

 350+/-60 Linear/random 28 > 60 22.8@800nm
MT250-B100A0,5-IR TeO2 700-1100

0.5 x 2

 250+/-50 Linear/random 47 > 60 19@800nm
MT200-B100A0,5-IR TeO2 700-1100

0.5 x 2

 200+/-50 Linear/random 47 > 60 @785nm 19@800nm
MT110-B50A1-IR TeO2 700-1100

1 x 2

 110+/-25 Linear/random 23 > 60 @785nm 9.5@800nm
MT110-B50A1,5-IR TeO2 700-1100

1,5 x 2

 110+/-25 Linear/random 23 > 60 @785nm 9.5@800nm
MT80-B30A1-IR TeO2 700-1100

1 x 2

 80+/-15 Linear/random 14 > 70 @785nm 5.7@800nm
MT80-B30A1,5-IR TeO2 700-1100

1,5 x 2

 80+/-15 Linear/random 14 > 70 @785nm 5.7@800nm
MT200-B100A0,4-1064 TeO2 980-1100

0,4 x 2

 200+/-50 Linear/random 47 > 35 25.3@1064nm
MT200-B100A0,2-1064 TeO2 980-1100

0.2 x 1

 200+/-50 Linear/random 23 > 60 25.3@1064nm
MT110-B50A1-1064 TeO2 980-1100

1 x 2

 110+/-25 Linear/random 23 > 55 12.6@1064nm
MT110-B30A1,5-1064 TeO2 980-1100

1.5 x 2

 110+/-15 Linear/random 14 > 60 7.6@1064nm
MT80-B30A1-1064 TeO2 980-1100

1 x 2

 80+/-15 Linear/random 14 > 65 7.6@1064nm
MT80-B30A1,5-1064 TeO2 980-1100

1,5 x 2

 80+/-15 Linear/random 14 > 65 7.6@1064nm