AKA0000CE3

Acousto-Optic Devices
Acousto-Optic Tunable Filters
Type: EFLF
Acousto-Optic Tunable Filter uses an anisotropic
diffraction of light occuring with shear-mode acoustic
waves travelling in a single crystal of tellurium dioxide
(TeO 2 ), which is a high speed spectral element
selecting optical monochromatic light from multicolor at
high speed.
Features
● Low
driving power (0.5 to 1.0 W)
spectrum scanning (6 to 9 μs)
● Wide optical tuning range (380 to 750 nm)
● High spectrum resolution (0.4 to 2.3 nm)
● RoHS compliant
● Rapid
Recommended Applications
● Rapid
● Color
scan spectrum analyzer
decomposition
Principle
Tunable Filters
TeO2 crystal
Absorber
Incident light
2
1
1
3
2
Acoustic wave
3
Tuned light l1
Untuned light
Tuned light l1+Dl
f1 Oscillator
Transducer
Explanation of Part Numbers
1
2
3
4
E
F
L
F
Product Code
5
6
Characteristics
(Resolution)
7
8
9
10
Design No.
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
00 Dec. 2014
Acousto-Optic Devices
Ratings and Characteristics
Part No.
EFLF20
Item
EFLF100L1
AO Medium
EFLF100R1
EFLF100R2
TeO2
Optical Tuning Range:l (nm)
380 to 750
400 to 642
900 to 1600
1600 to 3000
Resolution for Slow Scan (nm)
0.4 to 2.3
1.4 to 6.3
4 to 12
12 to 41
Maximum Diffraction Efficiency (%)
(Extraordinary Light or Ordinary Light)
80 min.
Access Time (μs)
(Beam Dimensions: mm)
70 min.
9 max.
(3×5)
6 max.
(3×4)
Dispersion of Deflection Angle for Filtered Light (deg.)
(Extraordinary Light) (mrad)
0.5 max.
0.3 max.
Driving Frequency Range: f (MHz)
40 to 110
50 to 105
39 to 72
20.5 to 39
1.0
1.0
1.0
3.0
Maximum Drive Power (W)
Input Impedance (Ω)
50 (nominal)
Maximum Beam Dimensions (mm) (H×W)
3×5
3×4
Dimensions in mm (not to scale)
Type EFLF
Aperture
10.2
21
5
30.4
Base
11
32
45
53
f3 Depth4
14.0±0.1
connector(SMA)
4-M2.6(ISO)
Depth4
20.4
25.0±0.1
Unit : (mm)
10
■ Please contact the factory for packaging methods.
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
00 Dec. 2014
Acousto-Optic Devices
Typical Characteristics
Frequency vs. Optical Wavelength
3000
650
780
EFLF20
Ordinary Light
Extraordinary Light
EFLF100L1
EFLF100R1,R2
600
2500
580
480
Optical Wavelength (nm)
Optical Wavelength (nm)
Optical Wavelength (nm)
680
550
500
2000
1500
450
1000
380
40
50
400
50
60 70 80 90 100 110
Frequency (MHz)
60
70
80
90
Frequency (MHz)
10
100
20
30 40 50 60
Frequency (MHz)
70
80
Resolution
Resolution
5
Resolution(nm)
Resolution (nm)
EFLF20
0
380
480
580
680
780
8
7
6
5
4
3
2
1
0
EFLF100L1
400
500
550
600
650
Optical Wavelength(nm)
Optical Wavelength (nm)
50
450
Resolution(nm)
EFLF100R1,R2
0
1000
1500
2000
2500
3000
Optical Wavelength(nm)
Spectra of a Mercury Lamp Observed by Rapid Specturm
Scanning with EFLF20
690.9 579.2 546.2
577.1
491.7 436.0 434.9 408.0
404.8
Wavelength l (nm)
Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use.
Should a safety concern arise regarding this product, please be sure to contact us immediately.
00 Dec. 2014
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