Frequency Shifters

All AO devices apply a frequency shift to the diffracted output beams. Acousto-optic frequency shifters (AOFS) are compact devices designed specifically for this task. Depending on the selected Bragg angle, these devices will either up-shift or down-shift the laser light by the frequency of the applied RF signal. Two or more devices can be cascaded in order to achieve sum or difference frequency combinations. Compound absorber angles are incorporated to minimize acoustic reflections.

Model

Std
A/R

Crystal Material

Active App
(mm)

Centre Freq
(MHz)

Tuning BW (MHz)

Suggested Driver Fixed or Variable Frequency

Feature

OAM1059-V31 633nm TeO2 (S) 1.5 +/-10 +/- 0.5

Fixed
Variable

+ and - shift
OAM1059A 633nm TeO2 (S) 1.5 15 +/- 1.0

Fixed
Variable


FS1303-TxxxR-J2 NIR TeO2 (S) 2 xxx +/- 1.0

Fixed
Variable


OAM1141-TxxS-2 633nm TeO2 (S) 2 40 / 80 +/- 1.0

Fixed
Variable


M1136A-FS40S-1 UV FS (S) 1 40 +/- 5

Fixed
Variable


1205C-1-869 633nm PbMo04 0.7 80 +/- 15

Fixed
Variable


1205-1054 VIS PbMo04 1 80 +/- 5

Fixed
Variable


M1141-P80-1 VIS PbMo04 1 80 +/- 5

Fixed
Variable


1205-1118 VIS,NIR PbMo04 2 80 +/- 5

Fixed
Variable


M1136B-FS80L-H UV FS (L) 1/2/3 80 +/- 5

Fixed
Variable


1206C VIS,NIR PbMo04 1 110 +/- 25

Fixed
Variable


1205-1069 VIS PbMo04 1 160 +/- 5

Fixed
Variable


1250C VIS,NIR PbMo04 0.75 200 +/- 50

Fixed
Variable


1250C-829A NUV,VIS TeO2 0.45 260 +/- 50

Fixed
Variable


OPP-1 VIS PbMoO4 1.5 300 +/- 100

Fixed
Variable


1260C NUV,VIS TeO2 0.2 350 +/- 100

Fixed
Variable


 
1209-7-1064M IR Ge 6 40 +/- 10

Fixed
Variable


1210-G-(fc)-H-MIR Mid-IR Ge 2,4 60 / 105 +/- 10

Fixed
Variable


M1208-G80-3 IR Ge 3 80 +/- 2.5

Fixed
Variable


Note that all of our Modulators can be used as frequency shifters